What do you want from a MMO game?
Player to Player interactions. That’s it. I don’t care if the game is called Barbie Happy Fun Time – if you can get players interacting with each other on a regular basis, you’ve succeeded at the MMO genre. It can be Deathmatch PvP, it can be Raids, it can just be efficient farming teams.
Speaking of farming teams, the most interactions I can clearly remember in GW2 happened when I came across a group that was trying to farm for lodestones. The lot of us ended up chatting for a good hour before we gave up.
Fun. Period. [Vice the frustration that GW2 presents in a whole lot of ways.]
Maybe they’ll get there before ESO comes out.