Northwestern - Transfer Student Housing Pref HELP

Hello peoples! I am an incoming transfer student to Northwestern (starting in Fall 2017). I am a rising sophomore. Does anyone have any input as to which dorms are social for upperclassmen? Any info regarding any of the dorms would be really helpful. Thanks in advance!

Did you check Northbynorthwestern?

lots of sophomores living in Allison, Shepard, 1838 (south residential area)

Thank you guys for all of your input!