When you speak about graphics, you have to consider two things :
- Graphic quality, in term of technicity (EQ2)
- Graphic quality, in term of identification (WoW)
Nowdays, its easy to make a game using the latest graphic technics, but its always way harder to give a visual identity to your game, and few games made it. For me, WoW is one of them.

Graphics mean nothing. My favorite type of game is the good ol' MUD. Graphics are just a bonus.

Asheron's Call 2... Good graphics. Sucky game play.
<insert well-designed MUD here> ... No graphics, fun for hours and hours and hours.