UT will be ok next year, but nowhere near the level they were this year. Losing Admiral, Williams and Bone (who I believe will be a bigger loss than some think) will take a pretty big toll on that team. They may finish behind 2 other teams he's considered in the same division.
Florida provides him likely with a better chance at a deeper tourney run, plus puts him "close to home".
UK on paper gives him the best shot a deep tourney run, and probably the most exposure, but (also on paper) probably 25 min/game.

KBJ obviously makes any of those 3 better than they'd be without him. Of course, he make Tech a lot better, too, and he'd be a hero if he returned.