I started playing EQ 2 when it went live (took a week off from work just to do that), and stayed till last December. I finally succombed to the siren's call of WoW, mostly because everyone (except me) from my EQ 1 guild went to WoW, and because my son wanted to play WoW and I wanted to play with him.
I'm back now. Call me shallow, but I just can't get into a game where I look and feel like a character from a bad cartoon. Grouping is irrelevant for the most part in WoW, and for that part of the content that requires groups, if you don't have reliable friends or an active guild, forget it. CoH and EQ 2 have implemented great and easy to use LFG functions that let you fnd partners of whatever class and level you need, anywhere in the game world. The folks at Blizzard seem to have decided that if you don't have a group, you don't need one, and have stubbornly refused to implement any kind of decent LFG function.
I hope you like WoW. To me it was like popcorn - tasty at first, but after a while you just can't eat any more, and 10 minutes later you wonder why you bothered in the first place.