UAB dental students seem to get a lot more clinical experience than UF students. Some UAB students achieve as much as double the clinical requirements. UAB is in a lot better location (large population) to get a broader clinical experience.
UF seems to put heavy focus on giving back to the community, and 80% of their patients are from the indigent population of Florida. UF also puts emphasis on outreach by having volunteer mission trips to Latin America. The clinical experience at UF seems decent, and there wasn't a single dropout in their most recent graduating class. UF's performance on the boards is probably not as high as UABs, because UF doesn't give out their boards rankings, whereas UAB proudly states them.
I believe the sim labs of UF and UAB are about equally new. The most state-of-the-art sim lab from what I've heard is the one at NOVA.