[Clayton]

Hero is on the button and should take advantage of his position, but the opener has a tighter range. Therefore I would be more tempted to flat call.

I would put villain on AA-55, AK/AT, Broadway suited connectors and speculative hands. Our range is a slight dog but our positional advantage makes up for it a little in that we can selectively "float" villain on board textures where it's called for.

Another thing to consider, however, is the effects of the flat call on the players in the blinds. Flat calling is going to encourage players like Miami John to come along or even reraise, whereas a preflop reraise will generally get it heads-up.