Tera is the one I never get bored of, a lot of action and end game content.

Other than that, you should try MOBA's, League of Legends hype

Reviving an old thread cause I like MMORPGs as well. There is one called Black Desert scheduled to release in US and EU early 2015. It is releasing for open beta in Korea in a week. Looks pretty awesome though.

Other ones to check out:
Vindictus (which I would love to play but my character is on NA server and blocks Korean IPs ㅠ.ㅠ)
DragonNest

If you want a free to play MMORPG then you should try: Tera or Aion. But The best MMORPG ever in my opinion and taste is Guild Wars 2, where you pay one time and play whenever you feel like with no monthly subscriptions.

Tera is a really good MMORPG, but if your computer can't handle the 30+GB or you're simply too tired to wait hours for your game to download, Neverwinter is also a decent MMORPG to invest time into.
Runescape, however, is my favorite MMORPG ever since 2009.

If you don't mind spending a quick buck, I'd recommend Guild Wars 2, especially since it should be on sale for the Holidays. It's a lot of fun, and personally believe it is trying its hardest to diverge itself from the generic mmorpg set

Is anyone looking forward to the release of Black Desert Online? I know it won't be released for EU and US for a while but it is coming out in Korea soon. Right in time for my vacation!

SW:TOR? I play that all the time.. they recently released a new expansion.

I also beta tested and played thru release The Elder Scrolls Online for about a year. It made me mad.. so i dont play it anymore. they dont fix their crap. But i have been playing swtor since early release and keep going back for more abuse.

Cabal 2