[gergery]

There is no one correct answer for how to play this hand. The truth is it’s a close decision dependent on table conditions, opponents propensity to fold/bluff, and your image.

Argument for checking
Checking the turn will often get worse hands to lead out on the river – hands that would fold to a bet now – like set/twopair or A2 with worse high. (btw, this is how you take money from overaggro players like AirHumpy [img]/images/graemlins/blush.gif[/img] )

And it will lose you less when you are behind to A2 with diamonds.

Argument for betting
Balanced against that is a) how often a better hand will fold. But A2 with a weak flush will not be folding here (witness that many are suggesting that you call the river with A2 with worse than a weak flush), so that will be pretty rare. And b) how often a worse hand will call – but you are pretty much hoping that A2 with a worse high than a straight will call and the only possible hand there might be A2+set.

In truth you probably should be taking both these lines to mix up your game