I have a Droid X with Verizon and love it. It's a really great phone... I agree - the gps works fabulously - and not all phones have free navigation so you have to be careful with that.
The Droid X even has a spot where you can add a wrist strap which is fabulous for those of us that take our phones on vacation and might use them for taking pictures or letting the kids play Angry Birds...
Having said that - I know nobody else on Verizon so the whole call others for free bit is lost on me. Everyone I know is with AT&T or Sprint. We left AT&T because they didn't have an unlimited plan for their smart phones and we didn't want to risk going over.
I have read that Verizon will be doing away with their unlimited plans soon....