One man's annoying is another man's .... best friend???

I know we all know people that we think are annoying.  Whether its someone who is overly dramatic (like beyond bollywood dramatic), persistent whiners (suffering from the Poor Me syndrome every day), the idle gossip (only capable of talking about other people's lives) or the eternal cheapskate (pinching pennies on $200 bills). I know I have a few people I've encountered that I find to be extremely annoying and that I could really do without having them in my life. What's interesting however is seeing how people that I find to be eye sores could be the apple of someone else's eye.  Especially when those people happen to be perfectly normal, seemingly cool friends of mine.  Is my tolerance just very low or do people just have different personalities around different individuals.  I mean maybe I'm doing something to bring out the worst in these "annoying" friends or maybe they just want to do things to get a rise out of me every time.  Otherwise how is it possible that what I (and apparently most people around me) see in these annoying beings, completely escapes other individuals?  I mean, are they not seeing what the rest of us are seeing??