Which series had the best mutants?

[neatoman]

I would say the Nickelodeon cartoon.
In the Fred Wolf cartoon most were pretty unimaginative, plain humanoid animals with some incidental creativity here and there, not bad but it seemed pretty basic to me. The 4Kids cartoon did have some cool mutant designs with the underground city and the one after Bishop's fake alien attack, but mutants were never really a big part of that show.

The Nickelodeon series however, there's a Plant-Human, an Upsidedown Spider, a Sparrow Wizard, HR Giger Squirrels, Acne Pidgeon-Man, Three-Headed Snake-Girl, Ice Cream Cat, Giant Brain on a Chicken, Cybord Carp, Bone-Spiked Akita, Big Daddy Roth homage, etc, this some creative stuff. My only complaints are that the mutagen seems to do whatever the writer wants for no good reason, and I wish most of them weren't just brushed aside after their introduction epsiode...