Okay, "Moe Baby Blues" is one of the best (and certainly the funniest) episode of recent seasons.
It starts out kind of average with the Simpson family visiting the Botanical Gardens. It was funny to see Homer getting chomped on by the Venus Flytrap but hey, most episodes have a funny moment like that.
Then the spotlight shifts to Moe. Moe is upset that all of his customers/only friends are at the Botanical Gardens. His line is classic, "I've been replaced by a cooler?" So he decides to go down there with everybody else.
From that point on, the episode is consistantly hilarious. Moe gets poked down the hill by Chief Wiggum because he is "desperate for human contact." So, he decides to commit suicide (which is sadly kind of funny). Then, Maggie lands in his hands and the two begin to bond.
I can't think of a single moment of the episode that is the funniest, because it's all hilarious. 10/10 all the way!