I'm only Vet 6 right now, but I'm still really enjoying the game.
I only played a few of the betas (maybe 5), but that aside, I've really enjoyed still exploring what the game has to offer.
I did like DaoC & WAR pvp for RvR/AvA, as well as many other games instanced battle zone styled pvp, but I'm traditionally a PvE player.
I do like the PvP in ESO. Going out for a while to either run some Cyrodiil quests, or group up with another and gank a couple errant AD, or run amok taking some unrelated resource points or just go full on keep sieging, the AvA/RvR is good.
I'm still questing after a month and still experimenting with my main character which is quite unlike most MMOs in the past 15 years. It's not just getting better armor, but gaining the ability to explore how you want to play. Although FFXIV and GW2 tried (and I appreciate them trying because it was a good idea) to get character classes to change up their weapons, it really seems much better fit in ESO. Even though I played in betas, I have ended up changing my mind again, and it's not because I'm overly fickle.
Good stuff and looking to play more.
Thoughts? Comments?