i'd parse them in pairs...
bottom two clearly seem (to me) like dalton and manuel...
dalton has questionable arm, which could always limit him and CIN offense (better than pennington, but still limited... this could be bigger issue in howling winds during last month or two in AFC North... or three of season counting playoffs, but i haven't specifically looked for this correlation)... with the outstanding weapons he has in green and good looking rookies eifert and bernard, i'm tempted to put him third on list, tough call...
manuel was only first round QB, but his grade going in to draft process was more like third or less QB, at best... he does have prototypical size, said to be very charismatic with great leadership intangibles... will get some points running, but someone noted (waldman or bloom?) that he is more like freeman than RGIII, cam, kaepernick or even wilson in that respect... i do like the skill position weapons they are putting around him... stevie johnson, second rounder woods, third rounder wilson (i would have taken wheaton with that pick though, PIT got steal one pick later)... spiller is one of best young RBs... would like to see BUF get a TE... better arm talent than dalton, but since he doesn't have elite, blue chip pedigree of luck or RGIII (though better than kaepernick and russell wilson), hard to slot him ahead of dalton sight unseen... if i already had proven, not too old starting QB, i might go for swing for the fences pick in manuel... if not, might have to go for dalton...
bradford and tannehill both could push to become QB1 this year (12 team leagues)...
bradford has #1 overall pedigree, viewed by some as a disappointment, but his first year in same offense, should get huge boost with jake long, cook, austin, another year of development for givens (not sure, but in givens, austin and cook, might be one of faster lineups in league history?)... once manning, brady and brees retire in few years, i think he will be in conversation for top 5 QB... RB big question mark, he may have to throw more this year, my guess is this gets addressed next year if richardson and/or pead don't distinguish themselves...
as for tannehill, he has great positional upside, as he was WR until late in college career... waldman has raved about his developed pocket sense and awareness, which bodes EXTREMELY well for his long range projection, as some NFL QBs never get that... better wheels than bradford (who isn't statuesque, and can roll out, but won't take off and run with the ball much), tannehill also has above average arm, don't think he is known for bradford's accuracy (who i don't think has cracked 60% yet, but again, he hasn't exactly been positioned for greatest success before, i expect to see an uptick going forward)... wallace was a nice add, it will be interesting to see if he can replicate success he had in PIT in MIA, it may have to take a different form, as tannehill different style than bigger, stronger big ben at keeping plays alive, who could shrug off sacks from DL and LBs like a kodiak bear... losing keller hurts... rams let gibson go for what that is worth, i think most would view austin as huge upgrade (but that would be comparing WR3 in MIA to WR2 in STL)... imo, austin far more explosive and dangerous than WR2 hartline, too... ex-MIA LT long coincidentally in STL... so that move helps bradford and hurts tannehill... RB question mark in MIA, too, but i would much rather have lamar miller than richardson AND pead combined... his development has been helped (complete opposite of bradford, who's development has been stunted) by effectively running exact same scheme he did in college... possible he has top 5 upside in a few years, too, so they could be really close... all the talk about supporting cast and surrounding talent could change dramatically for better or worse in few years... but i'm more comfortable placing bradford in top 5 in few years...