Opposite alignment doesnt matter usually... But some characters have personal grudges with Viconia... like Keldorn 4 instance attacks her.... or mayb its the otherway round.... But the big problem with having a good character with Viconia in the Party is Reputation... If it gets ova 18 she breaks and leaves... so you have to occasionally kill someone if you are doing all the good qeusts.... and killing ppl can lead to all sorts of trouble, you can also rob some1 when you know you arent going 2 successfully rob them... though the result is close to the same thing as murdering them