Season One and Two were pretty funny but after that the jokes became crude and repetative and quite frankly boring.
Repetative? They stopped the catch phrases when they got old and even stopped killing Kenny. They realized when things got old. Plus the jokes didn't get worse, hell, they got smarter. There is more meaning and more politics to the newer episodes while the old ones just put together weird situations.
so, any fav. south park quotes or anything?
cartman: "oh my gosh guys, i've got it. ok, you know that you eat through your mouth, and crap out your butt, right? ok, stay with me, this is where it gets complicating. so if you eat through your mouth and crap out your butt, then if you shove food up your butt, you'll crap out your mouth!"
stan: oh my god, they've killed kenny!
Kyle: those bastards
Kenny: mph mph mmph pmmh pmhhh hmp mp.
tolken: what's a VHS?
chef: just suck on my chocolate, salty balls.
there's a ton more, i'll remember them all later