If Virginia wins ... no doubt in my mind that they are seeded ahead of Florida State.
If Florida State wins, it is possible that the Seminoles get the higher seed ... but I would lean towards Virginia. They would have the same overall conference record (including tournament games) and head-to-head would be tied at 2-2. But Virginia probably ends with the higher RPI, has a higher NC RPI (3 vs. 14), and a considerably better record vs. the RPI Top 25 (4-3 vs. 3-6) and RPI Top 50 (14-7 vs. 13-13) at present. I think Florida State probably needed to win the ACC Tournament.
Brian