I suppose you could come up with any number of ways to measure how the conferences did relative to one another in the 2014-15 bowls.  I prefer to try to maintain as much objectivity as possible.  To that end, merely looking at the winning percentage of each conference makes some sense.  To that end, a ranking of the conferences by bowl winning percentage nets the following:
CUSA .800
Pac 12 .750
Ind .667
SEC .583
Big 10 .500
MWC .429
AAC .400
MAC .400
ACC .364
Sun Belt .333
Big 12 .286
Now a subjective insertion. In my view the winning percentage is not necessarily completely indicative. A conference who attained a .400 record against better teams than another conference with the same record (it seems to me) had a better result. If we rank the pre-bowl combined winning percentages faced by each conference, we get the following:
Pac 12 .755
ACC .692
SEC .687
Big 12 .682
Big 10 .675
MAC .672
Ind .667
MWC .647
CUSA .619
SBC .595
AAC .559
By multiplying the winning percentage in bowl game results by the combined pre-bowl winning percentages of the collective opponents of each conference, we can get what I have dubbed a "quality score". Doing that yields the following ranking:
Pac 12 .566
CUSA .495
Ind .445
SEC .401
Big 10 .338
MWC .278
MAC .269
ACC .252
AAC .224
SBC .198
Big 12 .195
Based on those results, you would have to argue the Pac 12 is the better conference in the bowls this year. Extrapolating that to the season as a whole is a bit of taking liberties, but I can see the argument. on the other hand, the Big 12 had a horrible showing. During much of the it was asserted in some corners the Big 12 was a rival to the SEC. you certainly cannot support that argument on these number. Refuting it with these results is, again, taking a bit of a liberty.
			
			CUSA .800
Pac 12 .750
Ind .667
SEC .583
Big 10 .500
MWC .429
AAC .400
MAC .400
ACC .364
Sun Belt .333
Big 12 .286
Now a subjective insertion. In my view the winning percentage is not necessarily completely indicative. A conference who attained a .400 record against better teams than another conference with the same record (it seems to me) had a better result. If we rank the pre-bowl combined winning percentages faced by each conference, we get the following:
Pac 12 .755
ACC .692
SEC .687
Big 12 .682
Big 10 .675
MAC .672
Ind .667
MWC .647
CUSA .619
SBC .595
AAC .559
By multiplying the winning percentage in bowl game results by the combined pre-bowl winning percentages of the collective opponents of each conference, we can get what I have dubbed a "quality score". Doing that yields the following ranking:
Pac 12 .566
CUSA .495
Ind .445
SEC .401
Big 10 .338
MWC .278
MAC .269
ACC .252
AAC .224
SBC .198
Big 12 .195
Based on those results, you would have to argue the Pac 12 is the better conference in the bowls this year. Extrapolating that to the season as a whole is a bit of taking liberties, but I can see the argument. on the other hand, the Big 12 had a horrible showing. During much of the it was asserted in some corners the Big 12 was a rival to the SEC. you certainly cannot support that argument on these number. Refuting it with these results is, again, taking a bit of a liberty.