Guild Wars 2 is about as innovative as WoW by comparison.
The big difference between the two, for me, is that Guild Wars 2 severely lacks combat/skill customization... but it's actually a ton of fun to engage in combat. TSW is the exact opposite: such a breadth of skill/combat customization, but it feels and plays like shit.
I am going to have to disagree. TSW plays fine, it is just very build reliant. If you want you can create a character that is very much about mobility and hopping around the battle field. I also find myself needing to active dodge far more often in TSW than GW2 and melee is also far more challenging to play in TSW. GW2 eliminated the trinity but replaced it with a mob fest that lacks serious tactics and many classes play very similarly and feel samey. I won't even address the pvp balance or weapon balance issues. Guild Wars 2 is also not the first game to include jumping or exploration puzzles in an mmo or many of the other features it seems to be praised for. Like WoW it is fortunate that the people who created some of the ideas they borrowed just aren't popular so no one noticed.
TSW not only removed the class system, but it got rid of leveling too. It has the most interesting questing of any mmo on the market, period. It is second only to a small FTP mmo none of you are likely to have heard of on character appearance customization. It's story and delivery are also top notch with only SWToR really being in the same league. Sadly for SWToR, TSW's npcs are by and large more interesting and the writing better done.
Funcom is one of the most under appreciated MMO dev's, if not the most. Their games always have issues, some of them huge. But every MMO they make they try to do something new and grow the genre instead of just copying what works.