Ok. Fair enough. I think we may have different definitions of depth. For the six Big 12 teams you mentioned, I'd take the top six in the ACC over them. Of course, this is completely hypothetical because we won't see the teams play it out, but I'd take the ACC if the top six from each conference played.
Duke vs. Kansas - push
UNC vs. Texas - UNC
Maryland vs. Kansas State - Maryland?
Texas A&M vs. Clemson - Clemson
Baylor vs. Miami - Baylor?
Wake vs. Oklahoma - depends on where it's played