TCU is a good football team, but their schedule wasn't as aggressive as Cincinnati and for this reason alone their stats are skewed more positive. Yes they beat BYU and Utah by significant margin, and you can stretch Virgina, Clemson and Air Force as teams of significant note on their schedule.
Cincinnati faced quality opponents in Oregon State, South Florida, West Virginia, and Pittsburgh and stretch with Rutgers, Fresno State, and a much stronger conference as a whole in the Big East. Their margins weren't as large as TCU, but their opponents were better.
I'm not staying there is a giant margin of difference in each teams vs. Florida case, but I think Cincinnati has the edge. Personally, I think either team would be blown-out by Florida - I'd LOVE it to be the opposite and I'll cheer (and have been cheering) for Cincinnati until then end.