I have never been to Tuscaloosa or Fayetteville.
I have been to the other five in your Top 7. A reasonable person can make a case for LSU, UGA, and Auburn, as they are all very nice. At some point, any list is highly subjective. But, no way in heck should South Carolina and Ole Miss be rated higher than Neyland. They're not junk, by any means, but there's no comparison between them and Neyland (or Auburn, who you rated 6th). Other than The Grove, which is not part of the stadium, Ole Miss' stadium is very ordinary (and small). Carolina's size is nice, compared to most stadiums, but you said it yourself when you pointed out where it's located. Tailgating at South Carolina is as plain and ordinary as it gets, because of where it is.
I think we can agree that there are A LOT of really nice stadiums in this conference. And, I appreciate your fandom, which is obvious by where you rated Bama, Tennessee, Auburn, and Florida.
My own list would be:
1. Neyland
2. Tiger
3. Jordan-Hare
4. Sanford
5. Ben Hill Griffin
6. Vaught-Hemingway
7. Williams-Brice
8. Commonwealth
9. Vanderbilt
N/A. Alabama, Arkansas, and Miss. State
Neyland's size, history, location, atmosphere (until we start losing badly), and GameDay traditions cannot be matched. It's tough to beat the location of UGA's stadium as well, but I thought Auburn's was especially nice once I was inside it. I'm not putting Florida any lower than where I did. If Williams-Brice was on campus, I would have put it above Ole Miss without question. Commonwealth is a lot better than Vaught-Hemingway once you get to your seat (except for the BBQ Nachos from Corky's at Ole Miss). Inside the stadium, from your seat, I would move USC and UK up one and drop Ole Miss two places, but if you consider the atmosphere created by the fans and the traditions surrounding the stadium, UK falls to where I put them.
I won't evaluate places I haven't been to.