villain is 21/19 11% 3b over 500 hands 3bets in button around 6%

PokerStars No-Limit Hold'em, $0.50 BB (5 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

SB ($61.20)
BB ($46)
UTG ($49.65)
Hero (MP) ($127.95)
Button ($111.30)

Preflop: Hero is MP with 6, A
1 fold, Hero bets $1.50, Button raises to $5.50, 2 folds, Hero calls $4

Flop: ($11.75) A, 8, 2 (2 players)
Hero checks, Button bets $7.50, Hero raises to $20, Button calls $12.50

Turn: ($51.75) 2 (2 players)
Hero ?

I couldnt decide between betting or c/bombing

His turn range is likely nut hands, AK,AQ and pairs JJ+. How do i get most value?