Kabuki. I love his design, his cranky personality, and he was my favourite villager in my first town back in New Leaf. I must always have him in my town / island.
So many good ones but right now it's Dobie. It's just fun to have this elder of the island wandering around all the time. Really love Rasher, Kiki, and Boone as well.
It's gotta be either Dizzy or Gwen. I hated Gwen when I first saw her in my WW town upon moving in, but then she grew on me lots and I was sad when she moved.