When tackling a project as serious as ranking logos, you have to keep several important things in mind. First, hydrate. That's always important. Second, try to divorce your team loyalty from your team logo. You have to be dispassionate in the ranking game. Third, you must think about what the logo tells you, not what you know the team to be. Pretend you know nothing about SEC college football... you know... like Bryan Goers.
With all that in mind, it's time to get ranking!
14. South carolina gamecocks

With the busy chicken-thing flailing around, you almost miss how shitty the big "C" is. First of all, it's not even that descriptive. There are actually two Carolinas and South Carolina isn't the good one. If anybody gets to claim a "C" without a directional descriptor, it's the North Carolinians. Colorwise, this if fine, I guess. It uses SC's horrible maroon, black, and white. On a better logo, you could make it work, but with this train wreck, it just looks like you have blood in your stool.
13. Florida Gators

Anyway, we've gone way off-topic. First thing is, this logo is generic. It's riding the fence between trying to be tough and trying to cartoonish. You've got to commit, Florida. Second, orange just sucks as a school color. You can't work with it. And contrasting blue and green... not a good idea. Just too similar. Squint just a little bit and you see there's no contrast. All the lines just run together. Florida, grab a sophomore graphic design student and take another swing at this. The sky is the limit! Unless you're an alligator, I guess. They can't even jump... I think? I really don't know anything about alligators.
12. Vanderbilt Commodores

11. Kentucky Wildcats

10. LSU Tigers

But still... You've got some kind of nasty NASA font displaying "LSU" in an uninspired way, and then a straight-up clip art Tiger head slapped on top of that. Seriously, LSU, I swear I saw that tiger head image on my 1997 CD-ROM version of Corel Draw.
9. Missouri Tigers

We're also at a disadvantage because how many unique takes can one try with a Tiger? I mean there are three Tiger teams in our conference alone! Auburn basically just said "Fuck it. We're really some weird eagle now." Hard to blame them.
8. Georgia Bulldogs

I mean seriously, it's not just a similar look. In 1964, Georgia's head coach Vince Dooley just looked at the Packers logo and said to himself "I bet I can make that in red and black." The logo is so similar that the Packers actually had to grant Georgia permission to use the image. So... while there are a lot of unoriginal concepts in college football, only Georgia had the cojones to straight up STEAL someone else's logo... Until Grambling State came along.
7. Arkansas Razorbacks

SIDE NOTE: It has been suggested to me that the pig may not be running to anything, but instead away from beastiality-lusting Arkansas fans. This theory has merit.
6. Mississippi State Bulldogs

5. Texas A&M Aggies

4. Auburn Tigers

3. Tennessee Volunteers

Orange is one ugly ass color, but somehow it works here, just as it has done for decades of disappointing 5-7 seasons.
2. Ole Miss Rebels

1. Alabama Crimson Tide

But look at that damn logo! I hate the Yankees too but give the devil his do. It works alone. It works wrapped in the team name. It just works. Sure, the tradition and the media exposure and familiarity all help... but this is a damn good logo and it stands on its own. Plus the red reminds you of the hell fires from which their coach was spawned.