I honestly don't know because I'm not really a fan of the snooty personality. I like the way some of them look like Francine (If I had to pick I would pick her) but other than that I'm not a huge snooty fan.
Whitney. She was one of my first five villagers and is the only one of my originals still in my town. That personal fondness plus a general adoration for her design makes her my favourite snooty.
Snooty villagers are my favorite! My favorite is Blaire (who shares my birthday and is also my favorite villager in general) but honorable mention goes to Portia who I love as well.