I prefer to see logos on white for now since there will be many applications that way and will be less confusing to sort through logos for the client. I'm going to rank #11 for now.
#13 I'm going to leave in unranked for now as a reference on a dark background since I'm working on white backgrounds for now. I don't want to move over to "not interested" but I don't want to confuse the ranking column for now.