Advice on AQ

Live 4/8
I'm in a middle position, one limper to me, I raise with A [img]/images/graemlins/spade.gif[/img]Q [img]/images/graemlins/club.gif[/img], next to act calls, the button calls, small blind calls, big blind three bets, everyone calls three, six people to the flop:
J [img]/images/graemlins/spade.gif[/img]8 [img]/images/graemlins/club.gif[/img]6 [img]/images/graemlins/spade.gif[/img]
small blind checks, big blind bets, next to act folds, i call, button calls, three people see the turn:
A [img]/images/graemlins/heart.gif[/img]
big blind checks, i bet, button folds, big blind calls. Heads up to the river:
6 [img]/images/graemlins/heart.gif[/img]
Check, I bet, he raises? What is my play here.