Most of my villagers from street passing are from my brother except one which I'm having the hardest time getting rid of. From my brother I got Julian, Frita, Quillson and some others I can't remember. Took awhile to get rid of Quillson and at first I really disliked Frita.
And finally Curlos who I got from street passing someone only once when I had 9 villagers and he put his house right in the way of a major pathway in my town. He's been there for 3 months and refuses to leave.
Whoa! So lucky to have gotten Stitches! I wonder if the person disliked him or if they lost him by mistake :0!
I've only gotten two villagers via streetpass myself: Doc and Queenie. Queenie I hated and didn't really want in my town. Doc I didn't mind having, he was cute and had a nice personality, I eventually let him go to make room for Ruby though (had to many lazies and not a single peppy villager)
I've only gotten two from streetpass, and both are pretty bad. Nate being the worst, with his ridiculous green eyebrows and being a bear. Kitty, not totally horrible, but dull and I can't wait for her to move.
I'm definitely disabling streetpass once I'm down to 9 villagers again.
I got Mallary when I was in Croydon (nearby town) one day - amusingly her old game town was also named Croydon. She was all right. I got quite fond of her. Ended up voiding her and then accidentally passed her on to someone else who wasn't too happy about it. I bet he voided her too, so Mallary's stowaway adventures continue... somewhere...
I've also had Marcel and Fuchsia but I don't remember whether they were streetpass or wifi.
I quite like getting streetpass villagers. I wish it'd happen more on my game.