Simple brand rating scale, A = elite brand, B = good brand, C = weak brand. I'm talking the sports prestige brand value only, in general terms, weighted heavily to football but men's hoops also factored.

SEC
(8 elite, 7 good, 1 weak)
Alabama = A
Arkansas = B
Auburn = B+ (a former A brand that has taken a hit the last decade)
Florida = A
Georgia = A
Kentucky = B (football is a C but their elite hoops elevates them to B)
LSU = A
Mississippi State = B
Missouri = B
Oklahoma = A
Ole Miss = B
South Carolina = B
Tennessee = A
Texas A&M = A
Texas = A
Vanderbilt = C

BIG 10
(7 elite, 8 good, 3 weak)
Illinois = C
Indiana = B
Iowa = B+
Maryland = B
Michigan State = A
Michigan = A
Minnesota = B
Nebraska = B+ (a former A that has fallen far)
Northwestern = C
Ohio State = A
Oregon = A
Penn State = A
Purdue = B
Rutgers = C
UCLA = B+
USC = A
Washington = B+
Wisconsin = A

BIG 12
(0 elite, 15 good, 1 weak)
Arizona State = B
Arizona = B
BYU = B
Baylor = B
Cincinnati = B
Colorado = B
Houston = C
Iowa State = B
Kansas = B
Kansas State = B
Oklahoma State = B
TCU = B
Texas Tech = B
UCF = B
Utah = B
West Virginia = B

ACC
(4 elite, 9 good, 4 weak)
Boston College = C
Cal = C
Clemson = A
Duke = B+ (weak football brand but elite hoops elevates them)
Florida State = A
Georgia Tech = B
Louisville = B
Miami = A
NC State = B
North Carolina = A (good football brand plus elite hoops brand)
Pitt = B
SMU = C
Stanford = B
Syracuse = B
Virginia = B
Virginia Tech = B
Wake Forest = C