In a nutshell, the Tbolt is like having the best of the Droid Incredible and X in one phone with none of the drawbacks. Having had both I believe you can fully appreciate what that means. The build quality I would say exceeds the Droid X's. The performance is superior to either phone. The camera and video recording is better. Signal reception is exceptional, call quality is great, web browsing is a lot smoother.
Benchmarks do not do it justice, the phone is so much faster than the X in everything you can do with it that it immediately stands out(App loading, app performance, installing/uninstalling, everything is so much more snappy).
It doesn't have any of the random annoying quirks of Motoblur.
The screen being shorter but wider than the X's makes typing on it in portrait mode more pleasant. I also feel that the newest version of the sense keyboard is much nicer than the Droid X keyboard.
I'm very much a gamer so the game performance increases are a huge deal to me. They may not be so much for someone else.
I am a big Droid X fan and was super skeptical about the Thunderbolt. I fully expected it to be little more than a Droid X clone, but after using it for a few days I can really say it feels like a next generation phone compared to the X.
The battery life is not as good as the X's, but it's nowhere near as bad as some people are making it out to be. It is significantly better than the Droid Incredible's battery life. The problem with the Thunderbolt is that the stock configuration is extremely harsh on the battery and most people don't tweak it.
When I pick up my X to mess with it, it is sluggish, choppy, the feature set seems barren, scrolling is clunky. Before the Thunderbolt I would have said the X was the best Android phone on Verizon by far.
