TUC definitely gave Starfleet its best look. I appreciate things that seem a bit more "real" and that's what I see in TUC. A lot of people choose the bridge from TFF as their favorite, but I don't see how. I never thought it looked terribly interesting or even very functional. The set revisions in TUC made it look like a real, working command center for a starship.
Indeed. The best shot we get of the TFF bridge is when there are 20 people in it so none of the consoles can be seen. Earlier in the movie everything's taken apart so we don't really get a good look there either.
However, I think the TFF and TUC bridges are supposed to be the same.