The reason why WoW was so great was because Blizzard allowed the modding community to make UI adjustments. The company itself provided a simple macro tool. This made skillsets usable and managable, while the modding community removed flaws or drawbacks in the hud. One example is the rogue, WoW's rogue is a very fast paced class; a fight that lasts 30 sec is a very long fight. Blizz originally put the health, energy, buff rotations at the very far left corner of the screen. Drathal's Hud (dhud mod) moved that to the center of the screen and converted the square shape to circular arcs (like a spaceship hud). Players no longer had to look away from the fight to see if poisons had applied or to check on health. Mods that corrected bad decisions helped propel wow to the number one spot. Trust me UI mods and simple macro system are small changes that make a big difference. Personally, I'd kill for a Maul/ Saber Attack; Buff rotation; macro. edit: I wouldn't bring in static damage meter mods for this game, since it'd alienate some classes.