River bet or check-raise?

[Nightwish]

What should my river action be: bet or check-raise? (And why.) I'm assuming no one will advocate check-calling. I have no information on my opponent.

Party Poker 15/30 Hold'em (10 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is MP1 with A/images/graemlins/club.gif, A/images/graemlins/spade.gif.
UTG folds, UTG+1 folds, UTG+2 folds, <font color="CC3333">Hero raises</font>, MP2 folds, <font color="CC3333">MP3 3-bets</font>, CO folds, Button folds, SB folds, BB folds, Hero calls.

Flop: (7.66 SB) K/images/graemlins/spade.gif, K/images/graemlins/heart.gif, 6/images/graemlins/club.gif <font color="blue">(2 players) </font>
Hero checks, <font color="CC3333">MP3 bets</font>, Hero calls.

Turn: (4.83 BB) 3/images/graemlins/diamond.gif <font color="blue">(2 players) </font>
Hero checks, <font color="CC3333">MP3 bets</font>, Hero calls.

River: (6.83 BB) 4/images/graemlins/club.gif <font color="blue">(2 players) </font>

[steveyz]

I'd bet, I think a lot of opponents will check through here with QQ/JJ/TT, and you don't want to face a 3-bet from AK. (Would you fold to a 3-bet to your check raise?)

[Manzanita]

Nightwish,

I would bet. I suspect that most opponents would check the river unless they have a better hand than yours.

-- Manzanita