I´m suprised that none has said L
from Death Note. I don´t read Death Note or so, but I´m absolutely sure that L has a lot of fan girls. However, it´s a bit of luck that you head to the right con at the right time. Itachi Uchiha
from Naruto can also be a girl magnet.
I have been looking after your post in the "Who do I look like?/Who should I cosplay" thread. But I can´t find it anywhere. However, direct when I say your pic (the one in the avatar) I immediately thought of Cao Pi
from Dynasty Warriors. You would just rock being him, seriously