Let's see...
Sasuke (from Naruto) Too emo...
Misa (From Death Note). Too...air-headed
Asuka (from Evangelion). Too stuck up...
Yusuke (from Yu Yu Hakusho). Keiko needed to hurry up and leave him
Shinji (from Evangelion). Too whimpy.
And most of all, Shinn (from Gundam Seed Destiny). He's almost as immature as my little brother...
There are a lot more people that I hate, but these are just the ones that came from the top of my head.