Motorola X2
HTC Thunderbolt
HTC Incredible 2
Go ahead and rule out the Thunderbolt. It's been having a lot of issues and battery life is really bad.
Yeah, you don't want the Thunderbolt.
If you are willing to go Incredible 2, you may as well go with the iPhone 4. JMHO. Neither are 4G, but the iPhone 4 is $99 while the Incredible 2 is $149. X2 is also not 4G, but the same $99 price as iPhone 4.
Granted, if you like Droid over iPhone that's cool. Both are good, I've just become partial to iPhone since I switched. For example, I can get an ESPN radio stream pretty much anywhere, even when I drop out of 3G coverage areas. When I was on Android I had all kinds of issues with ESPN radio.