My favorite personality is a tie between lazy and smug. Lazy has always been my favorite personality since wild world and the smugs are very nice and interesting. The only thing I don't like about them is that they sometimes offer fake paintings.
Least favorite has to be the uchi personality. They are a bit rude and the way they speak is not my cup of tea. At least in the german version. Maybe I like them more in the english version. Probably going to change my language the next time I'm playing. ^^
Before New Leaf my least favorite was the snooty personality. If they weren't toned down in New Leaf they still would be my least favorite.
As far as looks and actual villagers go, I ADORE peppy villagers. Omg I came really close to just not having an uchi at all because there are soooo many cute peppies.
As far as dialogue, I really love crankies They're so parental in this version, it's really sweet. Croque used to write me letters out of the blue and always made sure I was doing alright.
I'd say I don't really get all of the jock hate but then I realized that KC is just superior to all other jocks so it does make sense. Sorry other jocks! Kid Cat talks more about patrolling and keeping the town in check than his muscles, so it feels like having an actual crime fighter looking out for my town, hahah.
I feel like I should say that cranky is my favourite, but in this installation, I think I like smug best. I've also really warmed up to uchi (probably because of Muffy). Well done with these new personalities, Nintendo!
Least favourite is -how original- jock. Not a fan of lazy either. These two types have the most dull dialogue. Both have their moments, but for the most part, not so much.
My favourite would be either cranky or lazy, but I really like the jocks too (I seriously don't get all the hate they're getting, I think it's fun they're trying to turn everything into a game).
I don't really like the Uchis, they seem so arrogant. I used to dislike Frita (my only Uchi) because she was always so mean, but she seems to be coming round. Still my least favourite personality though.
My favourite is cranky/smug, least favourite is probably lazy, I don't know why. Something about them bothers me, which is a shame because a ton of cute villagers are lazy.