Do girls like geniuses?

I have a near genius iq (148) and have taught myself almost all I know (i know ALOT). I was just curious as to if girls are attracted more to a genius who is polite or a stupid a**hole because it is not an issue of confidence, intellect, or spontaneity and most girls I know seem to fall for a**holes. I am extremely quiet about my knowledge and NEVER talk to people about it. I just am good at explaining many things that I know about to my friends when they need help and word gets around. I just think no girls i know go for any smart guys, every girl i know is dating an a**hole who only talks about and drugs/alcohol.