Villain in the hand 20/11/1.7 over 1.9k datamined hands from like half a year ago. His BTN steal stat is 25% and his cbet raise 16%.
No recent reads or history.

It's a very standard spot of course. We're a little bit deeper though and villain isn't really aggressive. What makes it a tad more interesting imo is that I'm at the very top of my range here when raising from the SB and vs a BTN's limp/calling range instead of a standard calling range.

For the people calling, please provide some plan for turn/river.

Also do you think having the Ah a positive (more equity) or negative (villain can't have the NFD) thing in general?

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

BB ($33.20)
UTG ($76)
MP ($50)
CO ($24.05)
Button ($86.25)
Hero (SB) ($59.65)

Preflop: Hero is SB with A, A
2 folds, CO calls $0.50, Button calls $0.50, Hero bets $3.50, 2 folds, Button calls $3

Flop: ($8) 9, 5, 6 (2 players)
Hero bets $6, Button raises to $15, hero ?