AK and betting at the river still "unimproved"

[AdamL]

Ok, I put "unimproved" in quotations because I have top kicker for a pair of twos. [img]/images/graemlins/smirk.gif[/img]

I wanted him to fold another AK here.

Party Poker 3/6 Hold'em (10 handed) converter

Preflop: Hero is CO with A[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">UTG+2 raises</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">2 folds</font>, BB calls, UTG+2 calls.

Flop: (9.33 SB) 2[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, UTG+2 checks, <font color="#CC3333">Hero bets</font>, BB folds, UTG+2 calls.

Turn: (5.66 BB) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
UTG+2 checks, <font color="#CC3333">Hero bets</font>, UTG+2 calls.

River: (7.66 BB) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
UTG+2 checks, <font color="#CC3333">Hero bets</font>...

<font color="white">I guess I should mention that he did end up folding</font>

Check-calling seems weak, but I imagine it can often be the best play against an aggressive player by inducing bluffs from busted draws or a hand like AQ here. Against weak players, betting is probably best because they may decide to fold a hand that beats your own.

Is my reasoning basically solid?

PS -- If the turn card hadn't helped me, I'd still be betting against just about any opponent.