I wasn't complaining or saying that I hate these things. I think the classes each have good and down points each can be fun and each can be a bitch. However I have to say, that your theoretical arguement does not hold water, that it is possible to beat a Lich one on one, make them flee yes, kill them???(I don't consider them beat unless I am over there corpse) I have never heard of a Lich being killed in a one on one. I know you have extra insight as to how they opperate, but have you ever killed a Lich one on one?

As for thieves I actually think they are quite fine. I was commenting to the fellow before that said they had no down side. As for making them the weakest that is only because they are much more limited than any other class in skills/spells that they can use. I think overall they are fine.