Please don't make me choose between Genji and Francine lol. But I'll go with Francine based on my long history with her. Genji is a very close second though and I also adore Cole and Bunnie.
Tiffany and cole are in my town right now but if i had to pick one, it would have to be cole!! Hes like an adorable halloween bunny with his colouring and ghosty umbrella
Mira. I love her uniqueness, especially the red star on the back of her head. Uchi is also one of my favorite personalities. When I started the game, Mira was the first villager to move in to my town. I was unsure of what to think of her at first, but she grew on me quickly and has been with me ever since. Probably my 2nd favorite villager overall.