The Droid X is the best phone of 2010 for a multitude of reasons.
First of all, it's got the best specs so far with a 1GHZ processor, and a kick-ass GPU, it runs circles around other phones even when it's only on Eclair.
Physically the phone is the epitome of a solid phone, super thin, solid design, and the nice bump to give you a place to hold on to.
Last, but not least, Philblur is sexy as hell. I'm a big fan of Sense, but I feel like Moto's new UI might take the cake.
Oh, and it's on Verizon, so that makes it all the much better.