I had the Droid 2 and switched to thunderbolt.
I am VERY happy I made the switch. I like HTC Sense so much better than Motorola's stuff.
I look at battery life complaints here, and my Droid had worse battery life than my Thunderbolt.
I always had to charge the Droid around 1pm in order to last the rest of the day and my commute.
I went from a Droid X to the OG Droid then got a Thunderbolt. I gotta say I wish I would have held out for the Bionic ( even thought I have no idea if or when it's coming ). I agree that the HTC Sense is nice and clean looking but I used Launcher Pro on both my Motorolas and was very happy with it.