I wrote my response without having read your read on the villain.
And after thinking for a few minutes, I think the best answer, is to do all of them, with varying frequencies, but I'd say best is bet fold, but you can only bet fold it once, then they might taking shots, so you adjust to bet call for a while, long enough for them to think you always do bet call now, then you bet fold one again.. and every once in a while, you check call one..
but i get run over