Awesome, but simplistic, review for World of Warcraft from El Gallo:

WoW is not revolutionary and not intended to be so. It is EQ 1.5. Slightly dumbed-down, technologically updated, much more user-friendly, low downtime, soloable, and more directly involves your character in the game’s story/lore. I have been enjoying it a lot, but then again I enjoyed EQ for a long time, I just wished that it wasn’t so punitive, had less downtime, a little more story involvement, and was more soloable. WoW fits that bill, and does so with a well-done world that matches EQ’s level of atmosphere and detail. WoW is, imo, the only “EQ clone” that is better than EQ. All the others are “EQ done worse”.

If you are one of the people who rage against core EQ style gameplay, WoW is not for you. If you spend evenings furiously masturbating over UOs dread lord days, WoW is not for you. If you want “EQ done better” then WoW might work for you.