Here’s a ranking from every episode from that season
17: Do the Handicapped Go To Hell?
16: Probably
15: Something You Can Do With Your Finger
14: Quintuplets 2000
13: Pip
12: Helen Keller!! The Musical
11: Trapper Keeper
10: Cartman’s Silly Hate Crime 2000
9: Tooth Fairy Tats 2000
8: Timmy 2000
7: Cherokee Hair Tampons
6: Fourth Grade
5: The Wacky Molestation Adventure
4: Fat Camp
3: A Very Crappy Christmas
2: Chef Goes Nanners
1: Cartman Joins NAMBLA
I think Season 4 is where South Park peaks and I enjoy about every episode here (except for Do the Handicapped Go To Hell and Probably)