I just can't get over that "ghetto cool" name,
Rezound. Blech. Thank the gods it doesn't say it right on the phone.
It's a rudimentary comparison, but
HTC can do a product comparison. I didn't realize, it has a much higher resolution screen, same size, so as clear and sharp as my Amaze is, this one must be comparable to the latest iPhone. The 720p HD picture might come in handy if you regularly project the phone on an HDTV via MHL HDMI.
Qualcomm dual-core (I believe) processor, not the Snapdragon. Both will probably be zippy to the user.
HTC mentions a "16GB microSD pre-installed." So it comes with an expansion card ... a $18 value. Nice, though I'll bet it's a Class 4 card (some like Class 6 or 10 for the faster write speeds that the camera will arguably benefit from. I like that I can put a 32GB microSDHC in the Amaze for more video/image capture/music. Oh, and the Rezound comes without those Monster Beats earbuds, a ... $99? ... value.
In all the Rezound is a swank package ... if you are happy with the supplied microSD card and Monster ear buds. Some like to get their own.
dpham00 is spot on, though, you should determine which network has better coverage where you are. If your home is in the sticks, T-Mobile's newly implemented Wi-fi calling capability may be a tipping point for you.
(I added a note above that T-mobile will unlock the phone for you. I can't imagine Verizon cheerfully doing this.)