The reason why D2 got 8/10 is the replay value. DD lacks replay value because there is no big difference between class. I hate that you can kill all the monsters in wasteland by using a sword as a mage. I hate that as a warrior, you can cast lightening and various mage spells. In D2, barb, necro, amazon, and sorceress offer significant gameplay experience. I guess that balance issue is the major weakness in DD.
