Man if you look record for record, it looks like the Sunbelt West had the better teams cumulatively this season.
I was just going by the Sagarin rankings:
1 SEC (A) = 81.99 81.61 ( 1) 16 81.61 ( 1)
2 BIG TEN (A) = 77.55 77.33 ( 2) 18 77.33 ( 2)
3 BIG 12 (A) = 77.36 76.80 ( 3) 16 76.80 ( 3)
4 ACC (A) = 73.85 73.94 ( 4) 17 73.94 ( 4)
5 I-A IND. (A) = 67.43 68.76 ( 5) 3 68.76 ( 5)
6 PAC-12 (A) = 66.75 66.75 ( 6) 2 66.75 ( 6)
7 SUN BELT EAST (A) = 65.32 65.14 ( 7) 7 65.14 ( 7)
8 MOUNTAIN WEST (A) = 63.64 64.45 ( 8) 12 64.45 ( 8)
9 AMERICAN ATHLETIC (A) = 62.87 62.55 ( 9) 14 62.55 ( 9)
10 SUN BELT WEST (A) = 61.59 60.89 ( 10) 7 60.89 ( 10)
11 MAC (A) = 57.84 57.47 ( 11) 12 57.47 ( 11)
12 CONF-USA (A) = 56.11 56.15 ( 12) 10 56.15 ( 12)