I feel like if you removed the 60% of the show that is urination/defecation/farting/etc. jokes, the show would be one of my favourite.
While I agree there is a gross (ba-dum-tsh) overreliance on these kinds of jokes, the remaining 65% is usually good enough to make up for it. Also, some of those jokes are surprisingly funny, if only because of the ridiculous premise (joker vs batman). the star wars jokes deserve a special mention [youtube]KQL8bYwiWlI[/youtube] [youtube]7JZxWV7kyww[/youtube] [youtube]LeKLvS-dsTU[/youtube]