Well, I certainly dont see anything 'evil' about digging up my old Kings and ancestors and their pet snakes, and giving them false life. However, taking my loyal peasants 13 year old daughter and sacrificing her blood to summon devils out of hell does seem a bit, er, less than good.
I must say that what I really do like about Dominions is the more realistic 'Im good everyone else is Evil' stance. After all, history is written by the winners
And theres nothing more fun than backing up your devils with some priests casting smite daemon on the 'evil' enemy...