NL50: 3bet pot weird spot versus solid regular

[Check_The_Nuts]

Villian here is AcowsayMOOO. I have him as 20/16/3 maybe slightly tighter. He's a pretty well known regular, and more competent than a lot of villians I face.

Preflop probably isn't good, but I'm OK with that. My turn and river options I think we're very interesting. I'm not sure what his shove range would be on the turn if I lead, and I hate leading the flop.

Full Tilt Poker, $0.25/$0.50 NL Hold'em Cash Game, 4 Players
LegoPoker Hand History Converter

BTN: $100.30
Hero (SB): $78.75
BB: $27.55
UTG: $57.80

Pre-Flop: 2[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img] dealt to Hero (SB)
UTG folds, <font color="red">BTN raises to $2</font>, <font color="red">Hero raises to $6.50</font>, BB folds, BTN calls $4.50

Flop: ($13.50) Q[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $8</font>, Hero calls $8

Turn: ($29.50) 3[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $15</font>, Hero calls $15

River: ($59.50) 3[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero ?