BLT would be essentially a certainty as long as seeking lake view. Theme park good chance, standard view unlikely. VGF is still s resort deveolping any patterns and past cannot be relied on to give any future prediction. My guess is it will be a toss up.
September is one of the slower months so I do think getting a room at BLT is likely. 11 days is a lot but with waitlists, I think you could get it, at least lake view.