First, let's be sure to start off with a definite list of what exactly constitutes a "1st round pick".
Here's the most recent antsports.com ADP list for 12TSSR.
1. Larry Johnson RB KCC 1.01.63 1.01 1.04 00.81 90
2. LaDainian Tomlinson RB SDC 1.02.19 1.01 1.04 00.85 89
3. Shaun Alexander RB SEA 1.02.24 1.01 1.04 00.80 90
4. Clinton Portis RB WAS 1.04.73 1.04 1.08 00.85 89
5. Tiki Barber RB NYG 1.04.88 1.03 1.09 01.05 88
6. Steven Jackson RB STL 1.06.71 1.04 1.09 01.33 90
7. Edgerrin James RB ARI 1.08.01 1.05 2.03 01.72 87
8. Ronnie Brown RB MIA 1.08.47 1.05 2.04 01.93 89
9. LaMont Jordan RB OAK 1.08.66 1.05 1.12 01.84 87
10. Rudi Johnson RB CIN 1.11.09 1.07 2.07 02.45 86
11. Carnell Williams RB TBB 1.11.43 1.05 2.05 02.32 87
12. Brian Westbrook RB PHI 1.12.99 1.09 2.08 02.19 88
We should also be clear on what exactly defines a bust. For the sake of this debate, let's consider it "2nd round ADP" for guys to the 1.05 pick, and "3rd round ADP" for the guys from 1.06 to 1.12.
It's easier since these guys are all on the same position, so let's say for one of these guys to "bust", they would have to have points rankings near or worse than the following guys:
13. Domanick Davis RB HOU 2.05.12 1.10 3.07 04.28 83
14. Willis McGahee RB BUF 2.06.63 1.11 3.03 03.65 83
15. Kevin Jones RB DET 2.10.81 2.01 3.09 04.52 85
16. Julius Jones RB DAL 2.12.14 1.12 3.12 04.99 86
17. Willie Parker RB PIT 3.03.95 2.01 4.07 05.89 85
18. Chester Taylor RB MIN 3.06.76 2.04 5.10 05.54 88
19. Jamal Lewis RB BAL 3.07.96 2.03 5.05 06.20 83
20. Reggie Bush RB NOS 3.08.83 2.08 5.04 06.32 86
21. Reuben Droughns RB CLE 3.09.29 2.08 4.11 05.50 86
22. Warrick Dunn RB ATL 3.12.62 3.02 5.08 05.89 85
So, to rephrase the question again, which of LJ, LT, SA, Portis and Tiki are most likely to hit 2nd round ADP or worse, and which of SJax, Edge, RB, Jordan, Rudi, Cadillac, Westy are likely to hit 3rd round ADP or worse?
IMO:
1. Ronnie Brown - Given every chance to carry the load this year, which is bad to me. He has 900 yards and 4 TDs on his rookie resume, albeit partially splitting carries. He's a big back, but he wore down last year with limited opportunities. Only has two 100+ yard games. He's a solid receiver, which helps his floor, but the potential for injury without a complement is big. Has always split time on the higher level game. How will he adapt to being a one-man show? Highest risk pick at 1.08.
2. Edgerrin James - Edge will be running behind the biggest OL in the NFL this year. That said, they can't pass block to save their lives, and this is going to put a lot of added strain on Edge in passing situations. It will limit his ability to receive out of the backfield, and Warner is a big question mark. He may be limited in red zone opportunities, but he should have good success on the goal-line, unlike in IND. I very highly doubt he reaches near his career averages. Big risk at 1.07, especially if/when Warner goes down.
3. Shaun Alexander - Last year's numbers were heavily influenced by injuries to Seattle's WR corps. He was pretty much the only red zone threat, and benefitted from a dominating OL. While it's cliche, the loss of Hutchinson is still a big deal, as it puts more pressure on Walter Jones. Not catching passes lowers his ceiling to begin with, and his YPC, Touches, and TDs are all likely to take a decent hit. Madden Jinx is hoaky, but it's a Jinx for a reason. Guys that have anomaly years like his seldom repeat.
4. Brian Westbrook - His PPR value makes him gold and consistently underrated. But Philadelphia looks like they are serious about wanting to run more this year. That's bad news for an undersized back who has never proven to be able to carry the load. He has high injury risk written all over him, and while some like myself believe the Eagles Offense will be pretty good as in years past, the concerns here are very legitimate.
5. Steven Jackson - His carry splits raise a big question mark. After the first 5 carries where he averages 5.3ypc, he dips to a consistent 3.4ypc. While he's 230lbs, he may lose some goal-line carries to 205lb Moe Williams. Linehan will utilize more double TE sets and pound the rock, which should maximize Jackson's skill set, but it's hard to ignore his last-half ypc drop. Certainly injuries and an interim coach may have played a large role, but it might have also been Jackson wearing down. How will he respond to a 300 carry season? 350?
6. LaMont Jordan - Art Shell will have a new commitment to the run. This would seem like great news for Jordan, except now that he has a new QB who actually has legs, both of these factors are likely to significantly reduce his receptions totals. 70 is a pretty high number to match, and while few expected him to reach those lofty totals, I think even fewer expect him to duplicate them this season. He only averaged 3.8ypc last season, and that simply has to improve, even though the OL might arguably have even regressed some.
7. Cadillac Williams - Fair or not (and I don't think they are), it's hard to ignore the facts. Cadillac has had one entirely healthy season playing upper-level football. He has five key injuries to his five year career, and while each seems to have been the result of single-play rather than wear-down, the fact remains he might deserve the tag "injury prone." Also, while Alstott is slotted to be the reserve short-yardage back this season, the possibility still remains that he could eat, at least some, into his TDs. While Gruden plans to get Cadillac a lot more involved in the receiving game this season, so far in camp his hands have been very average, one of Pittman's strengths. He has an OL which will possibly feature two rookies on the right side, although it's hard to bottom the 2.0ypc he averaged to the right side last year.
8. Tiki Barber - He's getting up there in years. While he does have significantly less mileage than other RBs of his age, he is talking retirement, his team has a tough schedule this year, and he may lose more goal-line touches. He has been very consistent over the past three years, and while there are no indications his age is showing this year, if he loses even half a step it will have a weighty toll on his yardage totals.
9. Rudi Johnson - Rudi practically cloned his '04 totals last year. That said, Palmer doesn't throw to him, which caps his potential. But with all the off-field problems Bengals players are having, you have to believe there is a risk of it carrying over to the field. Team Chemistry is vital to the success of this team, as is Palmer's health. While it looks like things are still okay now, if this team implodes, they will hit the floor hard.
10. Clinton Portis - All signs seem to point to Portis having a stud year. Saunders was brought in to breathe some all-pro life into this offense which seemed to be on life support until late last season. Brunell is another year older, and certainly has a risk of flopping, leaving unproven Jason Campbell to come in and lead the team. Portis also has lost 10lbs since last season, and is down to his Denver playing weight, hopefully to be much more explosive. Of course we all remember Portis's back-to-back 1500/15 seasons, but owners might also remember his fragility. Will he be able to hold up for an entire season at this lower weight? It may seem trivial, but 10lbs can make a lot of difference, both good and bad.
11. LaDainian Tomlinson - The biggest fear factor for Tomlinson is the new guy at Quarterback. Rivers is completely unproven other than his arguably overrated 1.04 draft pick in '04's draft. His sidearm delivery is also something that shouldn't be ignored for the stability of this offense. While Tomlinson is probably the consensus most complete running back in the NFL, if Rivers can't consistently pass the ball, we are likely to see a dip in his numbers. That said, he has been the 3rd best RB in Fantasy Football for four years running. It is not exceedingly likely that a guy who has never finished lower than RB7 (his rookie season) is going to drop out of the top 12.
12. Larry Johnson - This guy is the next Jim Brown. You can small sample size me all you want, but watch him play, and look at his stats, and it's all there. His floor is where the ceiling is for the bottom half of the 1st rounders, and barring any unforseen injury, he has virtually no chance of finishing outside of the top 12. Losing tackles, fullbacks, head coaches, offensive coordinators--I'm sorry, but this guy is an absolute monster, and will produce on an elite level no matter where he is. He has a new head coach who wasn't afraid to run Curtis Martin into the ground. In a system where the primary objective is to get the ball to the Running Back and let him score all the TDs, he has a better chance of breaking the all-time rushing record this year than flopping.