making the obvious observaton...sasuke's the anti-naruto. They're two characters on different extremities. naruto is easy to love because he's funny, works hard and he's a good guy. By the same token Sasuke's easy to hate because he's dark, from the looks of it willing to sell his soul to the devil for more power and he's not exactly a nice guy (putting people down etc)
so why should anyone be surprised over all the hate he gets.
He's a cool complex character, the type who is fun to hate-atleast for me.