a frush against morons

[Hobbs.]

FT 3/6

CO is a complete idiot (90/10/0.75 over 1k hands) although I haven't seen him do very much dumb aggresive stuff postflop. BB is a 55/20 moron.

(6 handed)
CO open limps, I jack it up with J [img]/images/graemlins/diamond.gif[/img] T [img]/images/graemlins/diamond.gif[/img], sb folds, bb calls

flop (6.5 sb) 5 [img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] 5 [img]/images/graemlins/spade.gif[/img]
CO donks, I raise, bb calls, CO calls

turn 3 [img]/images/graemlins/club.gif[/img]
check, check, check

river 8 [img]/images/graemlins/diamond.gif[/img]
BB bets, CO raises, I....

Paused for a little while on the river here. Is calling or 3 balling best?