Engage certainly has a few really stand out unpleasant designs. I think in general it isn't that bad, but I really hate all the clown characters, and whoever the villain group is. I already disliked Kronya, they didn't need to make more of her.
For non-Engage, I really hate Yarne's design. Every time I look at it there's something new to hate about it, whether its the awkward patches of body fur, the stupid hair, or the damn stubble. The droopy flesh ears also just look nasty. They could've at least left that covered in fur.