Most of them I chose from a list of villagers online, that had their pictures. So I guess that's really shallow. I hadn't even gotten the game yet! I wanted Julian, Stitches, Fuchsia, Monique, Merengue, Pietro and Muffy.
Once I started playing the game finally, I met Sparro and Carmen. They were starters, and slowly but surely, we became friends! I got really lucky I think, because they are now my 2 favorites! In fact I also had a few other villagers that were almost dreamies, randomly move to my town. They were Agnes, Shep, Bruce and Timbra. I had to think long and hard about letting each of them leave, and I definitely got teary-eyed over their goodbye letters. They were lovely and I wish I could have had room to keep them, but I just didn't want them in town as badly as the villagers I have now.
The only villager/dreamie that I never planned on was Marshal. I heard he was popular and I looked at his pic and I though, yeah, he's cute, but so are a lot of other villagers. I don't see what makes him special.
But I kept seeing him in dreams (and talking to him), and in a friend's town, I saw how adorable his expressions are, and I learned from the other smugs that I had in my town that I really like that personality type. I really don't know what happened, but before I knew it, I was really a huge fan of this little guy. I think the cute fan art I saw about him on tumblr didn't hurt either. But there's cute fan art about a lot of villagers, so IDK. There's something very childlike and cute about him. Much like Stitches. You just want to protect them. So eventually I finally decided it would make me happy to have him in my town, so I could love him and we could be friends.