The Motorola Droid X has gotten the PC Magazine "Editors' Choice" award. The Droid X is a very large (but very slim) smartphone running Android. If you want a smartphone that has a large screen, then this is the one to get. The Droid X does NOT have a slide-out QWERTY keyboard like the original Motorola Droid. As a result, the Droid X is very thin (except where the camera and flash protrude from the body).
I think I'd prefer the HTC Incredible just because I don't need a device that has a 4.3" screen. Then again, the large screen is nice if you're watching movies or playing games, but who has time for that?
If you're on the Verizon Wireless network, you probably won't go wrong if you choose the Motorola Droid X or the HTC Incredible.