I do like when cute mascots subvert their looks to be unsettling or unexpected in some way even if they're not incredibly violent or sinister. I don't have any preference fuzzy or not.

I get annoyed with mascots when they're used to fill in some cute requirement and don't have a valuable part in the story despite taking up a significant amount of screen time. On the other hand it's fine if they're just there to be cute and are just sometimes around or are used as a sort of light mood between heavier moods. I guess how I like my mascots depends on how they're utilized.