[FiSheYe]

I think we can summarize that calling flop is the best flop play and that raising or calling turn are both valid options but due to the stacksizes and history calling the turn seems superior.
What really bothers me is the question if PA calls a river allin with a flush.
If this is not the case then raising the river has lots of merits as well.
We would turn our flush into a bluff but there is a very little chance he has TT and if we could make him fold a better hand that would be a superb result.
Obviously the only one able to judge that play is Krantz himself, because it requires a lot of background knowledge about PA's play and their session.
About calling or folding the river, as discussed either option is thin and irockhoess made a valid point about metagaming/our image.
I would tend to call here but I don't think folding can be any wrong and I haven't seen convincing arguments to put one option far above another.