lol, you're not even going to account for how much harder of a bowl lineup the Big 10 had than the Big 12? Alrighty then, good talk.
Big 10 played teams ranked: 2, 9, 11, 15, 17, 19, 21, 23 in the final playoff rankings
Big 12 played teams ranked: 10, 14
This is why bowl results is always a dumb argument. The Big 10 went for money over wins (as usual) and assembled what is annually the hardest or second hardest (depending on how many SEC teams made the New Years Six bowl games) schedule of bowl games. And just about every year they lose more than they win
You're not doing it right.