Wow, there are a lot of species in my D-tier! I didn't realize I disliked so many of the models. Interestingly, I seem to like bears and monkeys a lot more than most people, though! (Teddy and Shari are cute enough to make me like the whole species, I guess!)
This was a lot of fun! I ranked S as most of my favorite villagers come from that species/are species that I need at least one of! A are villagers that I really like and tend to have some from that least as well. Whereas B and C, I'm pretty neutral about them. Yet for D... I don't really like most villagers from that species.
Deer are the absolute best IMO. Fauna, Beau, Bam, the list goes on and on.
Penguins are my favorite animals in real life, but I can't say they're quite S tier. Still love them tho.
Some species are bumped up just because of particular villagers. horses for example, cause Julian is my number 1 favorite villager. And then there are villagers like Merengue!