1. Server capacity is pretty high during pre-release I remember doing shadow behemoth and having 100+ people slaying the giant thing. Sure 100 people isn't shit tons but it's more than WoW could handle properly in the pvp thing form wotlk before vault of thingy
(and this has been upped several times)
2. Do you change zones that often? What about OF isn't for you?
3. I have no camera issues (especially ever since the FOV changer went in beta (and now live) mode. Music is pretty awesome it's very uptempo with low beats, ofcourse this is a direct contrast to WoW which has lowtempo and high beats http://www.youtube.com/watch?v=1tJ1X...1D0C494F0D4481 vs http://www.youtube.com/watch?v=xtJcoZ9E9ZQ this comes down to preference though.
Both music "types" are there to set a certain tone, GW2 sets an idyllic "peaceful" adventurous tone while wow is more about battle and "grim" sounds.
4. You knew/should have known there issn't a trinity
5. Again you should have known this. You can't complain about a mechanic not being there that you like when this has been talked about for years. It's like saying yo guys why can't I use my hands in soccer like handball players do?