Since these lists are starting to get a bit standardized, I'll open up the pandora box question for debate.
How does AP get a top 5 ranking in dyno at his age? Not saying he won't easily justify it but you don't often see universal love for a high-mileage 28 year old RB. Rice and Foster are a year and two years younger and have comparable if not better 3 year windows and they don't sniff the list.
I'm not saying give either of these guys his spot but I do think its worth noting we are talking about RBs here where age is King. Why aren't we talking about Spiller, Martin, Leveon Bell, Gio, and the young flashy guys that arguably, in dyno, will have about 304 more years than Peterson?
B/c he is an exception. If we can see Curtis Martin play forever as a plodder, and we see AP come back and damn near break the single season yardage record less than a year after shredding his ACL, we kind of build in the fact we expect him to produce into his 30's. The true greats offer exceptions to many rules.
I knew this would be the type of answer to this question. Honestly, I expected someone to just say "cause he's AP..duh!" I think we ALL get that he is different and special. However, this, to me, is a trap IF we are just simply talking about VALUES of DYNASTY RBS because father time loses to no one and Peterson has had a tremendous workload (people crucify Foster and Rice for this heavy workload over the past few seasons and readily point to it as the reason when they had a down year but Peterson had every bit as much of a three year workload and it NEVER gets mentioned). Coming off a special year in 2012, people had Peterson hyped beyond comparison and while he was still a safe pick and produced, he certainly...predictably...wasn't that Alpha-Omega of Rbs last year.
And that's my point here. We can clearly see why we laud Peterson but we aren't realistic if we think a heavy-worked Rb going on 29 has more DYNASTY VALUE than 23-25 year olds that, themselves, have been very highly touted. I'm not a Spiller fan by any means so you won't see me on here hyping him up BUT when you look at a guy like him, at his age, and with his speed, and then you read what SO MANY people were hyping him up to be, you just have to know that the dynasty value of a guy like Spiller ranks higher than Peterson. This season, live in the now...sure. But as early as 10 months from now, this is going to be a very different discussion when you are trying to trade for or sell these guys.
That's all I'm saying. This looks more like a redraft list on the RB side because I guarantee you that in as little as two years, its a better than 50% chance that there will be a handful of Rbs with much more dynasty value than Peterson.