I love Naruto, and I like Sasuke. My liking's for Naruto are greater than Sasuke, but I certainly don't hate Sasuke. Sasuke just traveled down the wrong path, for a very good reason. To him, his brother murdered his whole clan. Like, If I were Sasuke, I would be like "WTF?" and probably go down the same path. People should look at things from different perspectives. I think the show is enjoyable more for people whom like both characters, rather than hate one over the other:
If they hate Naruto: Well.. they have to see him in almost every single episode. Not to enjoyable if you hate that character.
If they hate Sasuke: Like I said above, when he's in the episodes you'll probably despise watching him. Although, if Sasuke gets the crap beat out of him, the viewer who hates Sasuke would be happy, right? Ya.
If they like both: Perfect. You love watching Naruto, and when Sasuke comes into some episodes, you'll surely get excited and happy to watch.
If they hate both: Well... you shouldn't! The series would certainly be less enjoyable. :C hehe.