I think Butler will beat out VCU... a little more solid defensively, I don't think VCU will be able to keep up its offensive rampage that they have shown so far in the Tourney. Plus, Butler has been there before. Will be one heck of a coaching matchup, that's for sure.
I like Kentucky in the other game... think they are a little more balanced and can hurt you in more ways than Connecticut can. That said, no way I would want to bet against Kemba Walker right now.