Sparro! I think he's one of the cutest villagers ever.
Definitely Clay. He's adorable, lazy, has a cool and unique design, and an awesome house. And on top of that, he's a hamster. What's not to love?
Lily has been my favorite ever since I was a kid, and I don't see her mentioned very often so I'm assuming she isn't very popular
Cally is another one of my favorites (though I never did get her picture haha...)