15/30 3 way turn play

[howzit]

bad player raises UTG, bad player cold calls, i call with Ax3s4s5x on the button. blinds fold.

flop: AQ5, two spades. UTG bets, MP calls, i raise, call, call.

turn: (AQ5) A
checked to me, i bet, UTG c/r, MP calls cold, i 3 bet (?), UTG caps, MP folds.

river: T
UTG bets, i call.


turn play. . .call and get MP to call w/a worse low and reduce variance against these bad players OR ground/pound against v. weak O8 players?