re: Which team here has the best logo? the worst?

Actually I like all of them. They are almost all instantly recognizable, esp. Auburn, Georgia, Tennessee and A&M - the four best IMO, with AU #1

Of the non-lettered logos, Arkansas and Ole Miss are my favorites. (Ole Miss is my second favorite unis behind LSU's. Non SEC - Iowa's are sharp unis too and my second favorite helmet.)

Not much more you could do with LSU logo except mess with the font or create a new font (which we have attempted to do) or maybe curve or redesign the letters; but I do wish we'd go back to the ferocious tiger (or a form of it) that is on the Alex Box Intimidator Sign. :)