the playoff. Since the B1G, P12 and B12 teams aren't in the playoff they would still get auto-bids.
Orange Bowl would be ACC vs B1G/SEC, not the Peach. That would be #11 Miami and #7 Texas A&M.
Peach, Cotton, and Fiesta would get the 3 above teams (Ohio St, Oklahoma St, and Oregon) plus Cincinnati and 2 at-large teams which would be Penn St and Florida.
Ultimately the same teams you mentioned, but for different reasons and slightly different bowl alignment.