I don't think women need to feel subservient. I think one of the problems with so-called "nice guys" is both what you said - women don't know what he really thinks because he'll say anything to agree with her, as if that is going to make her more interested. But there's more to the problem than lack of transparency. The problem for me here is lack of backbone. I don't want someone who folds when challenged. I want someone who stands his ground even if it means disagreeing with me. That's not the same as being a jerk or a "bad boy." It means having the courage of your convictions. That is extremely attractive. If a woman can't stand to be disagreed with she's not worth it anyway.