Flopped straight, backdoored a boat -.10/.25

[pokeriseasy]

I'm playing very aggresive preflop, raising many hands, but postflop I'm picking my spots. So I'm not being a complete LAG. The villain in this hand is a total donk, but I'm pretty sure he flopped a set. Only one hand is beating me now, but I can't say whether or not villain would likely have raised AA or not. So should I value bet, or checkraise with the 2nd nuts?
Party Poker
Pot Limit Omaha Ring game
Blinds: $0.10/$0.25
8 players
Converter

Stack sizes:
UTG: $95
UTG+1: $25
MP1: $65
MP2: $95
CO: $72
Button: $25
Hero: $35
BB: $35

Pre-flop: (8 players) Hero is SB with 9[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/club.gif[/img]
4 folds, CO calls, Button calls, Hero calls, BB checks.

Flop: 5[img]/images/graemlins/diamond.gif[/img] 2[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/heart.gif[/img] ($1, 4 players)
Hero checks, <font color="#cc0000">BB bets $0.25</font>, CO calls, Button folds, <font color="#cc0000">Hero raises to $1.95</font>, BB calls, CO folds.

Turn: 9[img]/images/graemlins/club.gif[/img] ($5.15, 2 players)
<font color="#cc0000">Hero bets $4.9</font>, BB calls.

River: 9[img]/images/graemlins/spade.gif[/img] ($14.95, 2 players)

Hero....

[Full Metal]

I like a bet of $10. Bottom sets will probably be calling.

[RoundTower]

I like a c/r. This guy will never ever fold a full house, so you should be happy to get it all in and not worry much about AA. Betting $10 is quite bad because he will pay you off just as readily for $15.

I think he will almost always bet if you check, almost always call a c/r with any full house, and will rarely raise you with a worse hand if you bet.

[piiop]

So your opponent is a donk, but how aggressive is he? Is he scared of you? Why do you think he flopped a set?

If he's aggressive enough to bet and you're really sure he has a set then I like a c/r. But I'm not sure why you put him on a set, looks like he could also have two pair, ace with a low str8 draw, maybe a picked up flush draw, or another str8. Against a loose passive opponent who could have a wider range, I like a river bet better than c/r.

[Tilt]

Just pot it. You are getting paid by straights and weaker sets. Value bets are rarely called by lesser hands here. You are not folding so don't worry about AA. A PSB is best for the hand and for metagame if you are called.

[pokeriseasy]

[ QUOTE ]
Just pot it. You are getting paid by straights and weaker sets. Value bets are rarely called by lesser hands here. You are not folding so don't worry about AA. A PSB is best for the hand and for metagame if you are called.

[/ QUOTE ]

In what way do you think a PSB on the river in this spot is good for metagame?

[Silent A]

I assume he means it's good if villain folds.