I played rift for a while. We came 3rd in the world to clear Hammerknell. That was entertaining :P
What sort of mmos you prefer? It's hard to give you good ideas without knowing more about your game preferences :/
I don't think it's worth playing RIFT, certainly not if he's coming from WoW. I was the first on sever to kill Greenscale and clear River of Souls(the only raids available at the time), and then I promptly quit. It's basically WoW with better graphics and less content, and having not played WoW I found it more fun than most, although it still got old really quick. (Same with the 5 man dungeons. Essentially they're easy but time consuming, which is a poor combination. Pretty fun the first time, and maybe the second, but after that it's a grind to get items for raiding...zzz...). The PvP sucked too.
Disclaimer: Based on when the game first came out. I'm guessing they've released more of the same. Wait for GW2 my friends.