I have a Thunderbolt and a RAZR. The Thunderbolt was good for the first 4G phone, but has been surpassed in many ways by each new 4G phone. The RAZR has been surprisingly good - better than I expected, being an HTC person.

If I had to pick between Rezound and Spectrum, I'd pick the HTC in a heartbeat, and not just because I prefer the brand. Let's say I "don't prefer" LG, almost as much as I don't prefer Pantec.

I'd also consider the Galaxy Nexus (as I have been) as a contender. I hear people complain about this phone (as with everything), but for people I work with it's been an excellent phone (and we're picky).