not having been to them all, but impressions i get from watching on TV and listening to commentators, watching players shout calls etc....also knowing that the opponents that are playing these teams affect the outcome, i would say:
1. Florida--i know from watching TN, FSU, LSU, etc...cameras shaking, qb's shouting a lot, false starts...
2. Tennessee...it's not like it should be all the time, but you get Bama, FL, GA in that stadium and it is ridiculous. should be like that more often.
3. Penn St. Last year's game against OSU, i was really impressed with how that stadium sounded....and looked.
4. LSU...again depends on the opponent, but there's no shortage of noise.
5. A&M...the 12th man...they PRACTICE cheering for goodness sakes!!!
6. Auburn...very underrated imo...
7. UGA...before the kickoffs and they're all woofing in unison...
8. ARK...also underrated, that's fayetteville, not little rock.
9. Michigan...the design of the big bowl doesn't keep noise in like you'd think with 107,000
10. FSU...when they play UF or Miami there, it's awesome.