Kinda hard to choose, as I like a couple of types. I went with cranky, cause I've always thought it was adorable when they came to me for phrase help, and tell me that everyone thinks they're "scary". Or when I tell them that they're great, and they get all flustered.
I was going to put Jock, but only because I adore Kid Cat.
It's starting to be Smug though, so I chose that. I just love how they occasionally flirt and the stuff they say is super sweet. I just got Zell, and I LOVE his personality. I also had Colton who sent me the occasional 'love letter' and flirted and stuff. He was super cute too and I got his picture *-*
I've really gown to like the smug personality. They're always so happy to see me and they say the funniest things. It's also probably because it's a new personality and I've been dealing with snooty/cranky/peppy/lazy/normal/jock/cranky villagers since I began playing Animal Crossing a looong time ago.
My second pick would have been lazy, though. I just love them
Uchis are awesome. They're caring and helpful, but not overly sweet or boring. Smugs are a very close second though. I think "smug" is a really horrible name for them, btw, because they're very kind and thoughtful.