Honestly grades wouldn't matter to me, it's not because one doesn't get the best grades that one can't be intellectual.
Anyway, it's hard to judge any of these girls because we don't know their personality. Pick the one who you seem to relate to the most.
This. I still haven't voted. If I knew which girls they were and what your personality was I might've given you a tip, but you didn't tell us enough. v.v
This.
Think about it tonight, first one you think is the one you should ask.