NL25: Aces in three-bet pot with deep stacks

[Emperor Norton]

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($22.55)
Hero ($84.70)
SB ($59.25)
BB ($44.45)
UTG ($26.10)
MP ($34.40)

Preflop: Hero is Button with A[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">UTG raises to $1</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $3</font>, SB calls $2.90, <font color="#666666">1 fold</font>, UTG calls $2.

Flop: ($9.25) J[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, UTG checks, <font color="#CC3333">Hero bets $6</font>, SB calls $6, UTG folds.

Turn: ($21.25) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

River: ($21.25) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $6.5</font>, Hero?

Villain here is not great, but not terrible; he took a big chunk off of me a little earlier with middle set against my TPTK. The fact that he cold-called preflop and then called a big flop bet on this dry board concerned me, so I decided to check the turn for pot control, and to get value out of weaker hands on the river. When he leads into me weakly, I think that a small raise to around $15 is in order, with the intention of folding to a shove. Thoughts?