What's the better play?

[scpi10]

sb stats are 73/0/1 over 55 hands
in these 55 hands he's attempted to bluff the river from sb with 2 players left to act he will play any 2 suited and any connectors down to 32o. My question is about the river is it a bet or check after villian c/r the turn then checks the river?
Full Tilt 0.25/0.5 Hold'em (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is MP2 with A[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">2 folds</font>, SB calls, BB calls.

Flop: (6 SB) T[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets</font>, SB calls, BB folds.

Turn: (4 BB) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">SB raises</font>, Hero calls.

River: (8 BB) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333"> hero ?