aww, I kind of like Ron from
Kim Possible, I think his character is endearing. The only thing that annoys me is when he has a rare heroic moment and they ruin by making a joke out of it, like his pants falls down or something.

Geez, would it kill the writers so much to let Ron have
one kick ass moment with out under mining it by making it into a joke at his expense?
another cliche that bugs me is when you have several main characters, and they are all cookie-cutter "different" personalities. Like lets say there is a group of three or four guys and one is the nerd, one is the jock (usually their dumb as well), one is the ladies man/player, and one is the token foreign guy.
And if it a group of girls one is the bland yet sweet "girl next door" type, one who is the smart one who is generally shy and a doormat who gets bullied by every one else, one is the no nonsense feminist type that is usually portrayed as a shrew or harsh or just over-all unattractive and masculine in some way, and then their is the slut. Usually they are the prettiest one in the group and they are eighther ditzy cheerleader types with no brains or they are clicky mean spirited stuck up princess types, and of course they always get the guy.
Of course it is not as set in stone as this but these stereo-types are usually pretty prevalent in most teenage movies/TV shows from what I've noticed.