I think Spock is probably the most popular and iconic character of Star Trek. He's a great character and there really wasn't anyone like him when Trek came out. He is absolutely integral to Star Trek, at least TOS. So yeah I don't understand anyone who doesn't like him (although I like McCoy more
Granted I never understood character hate to begin with (probably why I should have stayed out of this thread lol).
There are characters I am indifferent too, but I can't say I hate any character. If I hate a character it more has to do with the writing than that character. And if I don't like the writing it is usually for more than one character.