Originally Posted by
SirCowdog
GW2 has no mob tagging. As long as you participate and do enough damage to the creature, you get credit. Gathering is non-competitive, as each person gets their own version of the gathering node. On the surface it might look like the gameplay is only 3-4 buttons, but there is a LOT of depth in the equipment and mastery system, as well as synergy between a team. The game also rewards personal skillful play MUCH more than WoW(where everything is iLVL).
PVP is 100% optional. Arena/BGs are a completely separate system from the PVE, and everything is equal. You don't use your PVE gear or stats at all, so it's completely based on how good you are. The open world PVP does use your gear, but it's server vs server. There are no factions, so it mostly just depends on your server's population.
Also, the base game is F2P, while the current content is a one-time purchase. There's really no reason to not try it out.