The most annoying of all emoticons for me? The freaking winky face. It usually follows something sort of assy. It tells me, "I don't have the courage to stand behind my assy statement, so let's pretend it was all a joke with an emoticon! We still cool?" (No, we're not.) Or it's used as an inane method of flirting. (If you're doing this you need to step up your flirting game. Light someone's cig for them or something. I don't know. Get creative, lame-o.)
You know, maybe I'm reading too much into the winky face. That could very well be the case. If you feel that most things you say would be followed by a wink, by all means, continue and I'll continue to judge you.