I went through the same problem and am actually in the same boat as you right now. Going through the bad boy stage was fun and I had much more success in terms of women being interested. I agree with you completely that there needs to be a balance of bad boy/nice guy. It gets tiring putting up a this alter ego, a la Tyler Durden, that treats women with a lack of respect and hurtful behavior. If you let it consume your "real self", you then realize that you are an a**hole.
For now I've discovered that I need to be myself, which is a combination of a sarcastic and humorous guy on the outside, with a bit of a mean streak, but once you get to know me, a kind person with a good heart. I like to call it 'bad boy with a heart'.
My handle is 'ngfl', which is a phrase that I've seen often lately, all over the web and in various books, with promises of landing all the women of your dreams. In reality, it should be "predictable guys finish last" because in the end, women still want a nice guy and to have a relationship with someone who will connect with them emotionally.