[PantsOnFire]

Without reads, like in a multitabling sceneario, I would tend to bet out 3/4 pot and then shut down. My second choice would be to either check fold or perhaps call a 1/2 pot bet.

All of the various factors you mentioned are valid. However, to play this hand in a variety of ways you would need to have good reads on the situation.

So the conservative approach is best I feel when you aren't sure of the reads. That means making either one stab on the flop or calling one bet, and then shutting down.