Queens.

[jonnyUCB]

A problem with calling is that it gets you blasted off the best hand on the river by a scare card. I really like to know your image as well as opponent's. Tell me you raise this flop (and preflop) with more than just an overpair and i think its a push.

Again, this also depends on your read of opponent - does he use stop and go as a tester (which many opponents will do if you have the right image) or will he never build the pot without the goods (= check/caller with a ten/JJ/underpair)?