The Incredible 2 is an excellent phone, but the biggest advantage it has over the Bolt at the moment is battery life. With firmware updates, the switch to Gingerbread, and so on, these battery issues shouldn't be as pronounced. So I guess it comes down to whether or not you want 4G and which one is nicer to hold.
Plus, if you shop around, you can already find a Thunderbolt for relatively cheap.
Plus, if you shop around, you can already find a Thunderbolt for relatively cheap.