I definitely think that the most popular brands on here are Coach and LV. There are those of us that love Coach, but are more into the leather bags, its a little diverse, haha.
IRL, definitely the Coach signature Sabrina. I was eyeing one until I saw TWO girls in one of my classes with it, I like to be different. Juicy is catching on at my college, but mainly fakes. I've seen a few real Daydreamers (the logo ones), but no one else with a leather bag like mine. Marc Jacobs is also becoming popular, I see the totes constantly.