I didn't like "terrance and phillip: behind the blow", kenny getting black-knighted was fun and maybe some bits from the documentry, but i can't remember anything else in it being very funny.
"osama bin laden has farty pants" is one that i like in theory, but it's just not that entertaining on rewatch. i've never liked warner brothers crap very much so the whole cartman bugs bunny sequence was just tiring.
Lastly i'd say "cripple fight" which is more rewatchable than the others but still not as funny as the average episode. and let's face it, timmy is just a pokemon with no abilities. this fight would have been 10x better if he used thunderbolt.
