Value bet this river?

[Etats360]

I had no reads on villian, second orbit or so on the table.
WHat worse hands can be in villian's range that he checks behind on turn with and calls a bet on river with?

PokerStars No-Limit Hold'em, $2 BB (6 handed) Hand History Converter Tool (http://poker-tools.flopturnriver.com/Hand-Converter.php) from FlopTurnRiver.com (http://www.flopturnriver.com) (Format: 2+2 Forums)

saw flop|<font color="#C00000">saw showdown</font>

Button ($202)
<font color="#C00000">Hero ($197.10)</font>
BB ($218.70)
UTG ($228.60)
<font color="#C00000">MP ($392.55)</font>
CO ($141.05)

Preflop: Hero is SB with A/images/graemlins/club.gif, J/images/graemlins/spade.gif.
<font color="#666666">1 fold</font>, MP calls $2, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $6</font>, <font color="#666666">1 fold</font>, MP calls $4.

Flop: ($14) Q/images/graemlins/club.gif, J/images/graemlins/heart.gif, 6/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $8</font>, MP calls $8.

Turn: ($30) 7/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
Hero checks, MP checks.

River: ($30) J/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>

[Jigsaws]

Qx, Jx. I would bet/fold for $20.

(Except I can't fold, but that's what I'd do in theory.)

[orange]

[ QUOTE ]
Qx, Jx. I would bet/fold for $20.

[/ QUOTE ]

[Abramovic]

Flop bet is weak. B/F river.

[ajmargarine]

More preflop and on the flop. Preflop use 4x+1bb per limper, so I'd make it $10. You have very little FE with that size of a PFR, whereas with $10 you'll have a lot more, and taking it down uncontested is an OK result preflop. CB more on the flop as well.

River I like a c/c actually, up to ~$25. I don't want him to have JT and raise me thinking it's the nutz. It's a good bluff card for him if he has T9 or 99.

[Redd]

[ QUOTE ]
Qx, Jx. I would bet/fold for $20.

[/ QUOTE ]

Even is x=4 or something? What worse hand than Q4 calls a river bet more frequenctly than all the better 1-pair/trip/flush hands out?

[Praetor]

20/fold sounds good