I'm not really strongly into the Sonic series (the games are too fast for my pace), but I have checked out Adventures of Sonic the Hedgehog. I've also seen most of Sonic SatAM and I figure I'll be checking out the earlier issues of the Archie comics.

AoStH is good, cartoony wackiness, and the villains are a lot of fun (it helps that their voices are fun to imitate too). I like Scratch's design a lot.
I also took the time to imitate the background art. '90s cartoon backgrounds are underrated.