Homestuck is a great webcomic with good jokes, fantastic (yet complicated) storyline and loveable and unique characters. The soundtrack is some of the most beautiful music ever. The art is amazing and even more amazing considering it was made entirely with MS Paint.
(P.S. Saying "the fandom is terrible" is a garbage excuse as every fandom has a bad part, but because Homestuck is so good, the fandom is huge so it has a large bad part.)