Here is my suggestion. Don't live with a Sophomore. Most of the time they will be unsocial because they are still in the dorm or they will be a different kind of social than partying all the time. There will be few exceptions (like I had to live in the dorms for two years for one of my scholarships) Larch will have parties and partyers but it will be a hellhole to live in.
I personally would suggest BWR. You'll most likely end up in an 90% Freshman Floor and that's a good thing. You meet everyone over in Oak Elm (The all girls building) but since it is an all-male building, no one wants to party there. So you don't have to deal with the **** when you're trying to cram for an exam or whatever. Plus you'll be bros with at least a few of them on your floor.
Plus what I've noticed from Co-ed floors, it is a ******* contest to try to impress the girls. On all-male floors, it's just whatever man.
But honestly, just go into the whole thing (whichever floor/building you end up choosing) with an open mind. AND DON'T GO HOME LABOR DAY WEEKEND. Seriously
A bunch of guys I knew (and myself) all decided to stay in Larch a second year, and pretty much all we did was party. The one freshman who hung out with us a lot almost flunked out of school trying to keep pace. But he caught on just fine 2nd semester, and he actually stayed in the dorms a second year when we all got a place off campus for junior year.
I realize this is the exception.
Also, co-ed floors are wildly entertaining. Everyone gets laid for the first couple months of school, and then you pretty well burn bridges with the members of the opposite sex after that period of time. You get to observe psychotic female drama without being a party to it. I remember there being a fairly unnattractive skanky girl who live on our floor. She brought some white rapper wannnabe guy back from a party and they started plowing in the guy's showers. The Larch showers have two layers of curtains between the entrance to the stall and the actual showerhead itself. My buddy Joe (the drunk freshman) sneaks in and steals their clothes, mid coitus. Our RA was gone for the weekend, so we were drinking beer in the lobby between the elevators, and watching those two race up and down the hallways wrapped up in shower curtains was ******* comedy.