after considerable thought i think that it doesn't really matter what line you take. i just wouldn't jam. i would consider other things instead. for example if he has mainly weak made hands i'd bet turn (A2s, JJ-KK, JT, etc) or if he is the type to check back KQ, c/j if he is going to auto bet when checked to but c/f river unimproved if it got checked back. or image considerations, do you never get paid in these spots? that means its probably a good spot to bluff.