THE REALM: Real old school, probably pre-Ultima Online even.
EVERQUEST: Oh the fun waiting around for an hour while my friend crafted arrows. So he could sell them to buy materials to craft more arrows. Do have fond memories of Befallen and fighting orcs in Crushbone though.
DARK AGE OF CAMELOT: This had some great realm vs. realm PvP, but the learning curve was pretty steep.
ASHERON'S CALL 2: Didn't do a whole lot more than goof around with the first few levels. Not my thing.
STAR WARS GALAXIES: A Star Wars game that at no point ever made me feel like I was playing a Star Wars game. Then they bowed to everyone whining they couldn't play Jedi in an era where there should be all of three of them, and made it so everybody could be one. Yeah, no thanks.
CITY OF HEROES: This game was a wonder. We loved it. Then we all just stopped playing for some reason. And now it's gone. We just can't have nice things.
EVERQUEST II: Funny enough, nicer graphics cost this a lot of the charm of the original.
WORLD OF WARCRAFT: Got in shortly after launch. Experienced the glory days of Lagforge and Lagrimmar. Got the loot bug and tooled around Azeroth on one knee. Still, you could tell it was going to be huge even back then.
CITY OF VILLAINS: Didn't have nearly the charm of CoH, but the new mechanics made it worthwhile.
GUILD WARS: Liked the idea of no monthly sub, but just didn't get into it all that much.
DUNGEONS & DRAGONS ONLINE: Should have been a slamdunk, but it was near impossible to solo for some classes.
LORD OF THE RINGS ONLINE: Probably my gold standard RPG. Does a fantastic job of making you feel like you're not only in Middle-earth, but in the story of LOTR without simply having you rehash every scene from the book.
VANGUARD: SAGA OF HEROES: Promised to get back to the crunchiness of Everquest, which I found appealing. Did not find the game appealing, however.
AGE OF CONAN: Loved the world, hated the controls. Way to twitch game-y for me.
WARHAMMER ONLINE: Again, loved the world. Loved the PvP, loved the world events anyone nearby could jump into. Had a lot of stuff other successful games liberally stole from.
CHAMPIONS ONLINE: Forever in the shadow of City of Heroes. And when the freemium version locked off certain power sets, I was done.
STAR TREK ONLINE: Great space gameplay. Boring planetbound gameplay.
DC UNIVERSE ONLINE: A multi-player fighting game disguised as an MMO. I did love the character creation though.
RIFT: Probably the best handling of character classes and skills in any MMO. Open-world events, great story, but it just couldn't compete.
STAR WARS: THE OLD REPUBLIC: Should have just put all that effort into KOTOR III, because I only ever played this single-player and it was spectacular as that.
THE SECRET WORLD: It's a fascinating world, tons of potential, but I felt like I got stuck in that zombie town *forever* and eventually lost interest.
THE ELDER SCROLLS ONLINE: Again, would have probably preferred just playing a solo Elder Scrolls game. Did have some solid mechanics though.
Good lord have I wasted a big chunk of my life on these things...