As a long time gamer who's played EQ1, EQ2, WoW, (along with DAoC, SWG, AO, VG and it all began with UO) I'd have to say EQ2 is superior to WoW. I'm playing AoC currently and enjoying it, with these two major caveats a) you need a mean rig to play it (I'm on a MacPro w/8800GT in BC) b) it's pretty lean in terms of features aside from combat. I'm on a PvP server and loving that aspect. The PvP is utterly pointless at this time, and there are no restrictions, i.e. level 80 can gank a level 12 in a lowbie zone, but it's fun.
My all time favorite is EQ1. Outstanding game. This is the game that set the bar as far as I'm concerned. Content rich beyond any other by 10 fold, complex and intricate spells, good degree of risk vs reward especially in the past, but that's just inevitable mudflation. Super outdated graphics engine of course, but unmatched lore and content.
WoW is a fantastic game. Everyone bags on it, but it's a total blast for a long long long time before it gets old. It does get old though. WoW is stereotyped for being an MMO "lite" and rightly so in many ways. Any moron can solo to max level with absolutely no problem... and so what. It has raid content too. Great game overall and can be extremely immersive if one takes the approach of losing themselves in the content, which I love to do.
EQ2 is a mixed bag, but overall I enjoyed it slightly more than WoW, albeit differently. EQ2 is darker, for one. In WoW I never could shake the "kiddie" feeling of the content even with the liberal amount of TnA in some of the models. Heck all MMO's have that going on. EQ2 just seems more adult oriented in both the quest goals and the overall intricacy. In other words it doesn't feel "as" designed for kids with small attention spans. EQ2 also has it's lore seeped in EQ1 lore since it's set in the same world in the future, so there's a lot of nostalgia pre-canned.
Hard choice, friend. Good luck whatever you do and don't forget to get some sun.