i would value bet here for sure... your willingness to three bet the hand on flop shows you had a hand you werent likely going to get away from... and if he had your aces cracked at this point, know way he would check the turn...

definite river bet, and if CO did slowplay like a moron after capping on flop and reraised you on the river, it'd be the same as if he had bet the turn and river with you calling down...