I was lucky enough to get Ankha and then Pekoe recently, but my favorite is Rodney and Diva. Maybe it's just the personalities but they make me laugh. Now if I could just get rid of Truffles and Freya..
Well it is Carmen, I think she is so nice and cool looking, she was a dreamy of mine and when I was forced to restart a new game card, she was there, along with Diana, Peaches, Sheldon and Peewee, Sheldon and Peewee are really ugly but seen Carmen there along with Diana which I didn't know before (and the good map layout), made me stay in that town.
In Groddle, it'd be Tom. He was one of my first move-ins two years ago. I wouldn't have considered him a dreamie, but I can't imagine the town without him. (That said, Pekoe just recently moved in and Pietro's plot is going to show up tomorrow, and I'm so excited to have them both!)
In Saalatu, it's definitely Marcel. I had to hunt him down and was thrilled to find him. (This hunting-thing is new for me and it feels so odd to be actively chasing villagers rather than just letting folks wander through.)
In Earl (the town I babysit), I was able to get Muffy, so she's my fave, though the town wouldn't be the same without Gladys and Gigi, who are both starter villagers and almost never ping to move.
Marshal is my favorite villager. The only villager id spend a lot of bells on (and Diana but I got her right away in my town...lucky). I even announced him Vice Mayor of my town!
Vesta! She's been in my town since the beginning and is absolutely adorable. I got Cole not long ago and I really like him and his cute little buck teeth too.