Flop decision with overpair + flush draw

[TGoldman]

Hello. This is my first post in your forum. I play a lot of PLO/8, and I recently started mixing in some PLO as well. The learning process feels somewhat odd. On one hand I feel like I have a lot of experience with the game through playing PLO/8 when high cards flop, yet at the same time I feel like a complete newbie. Here's a hand where I demonstrate my inexperience...

Omaha Hi $0.50-$1 PL

Seat 1: GRsiciliano
Hero: $50
Villain1: $100 (VPIP 48, PFR 5.6, AF-Tot 2.5)
Villain2: $60 (VPIP 44, PFR 2.8, AF-Tot 2.3)

Hero is big blind with A[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 10[img]/images/graemlins/spade.gif[/img]

PRE-FLOP
folder folds, villain1 raises to $2, 2 folds, folder calls $2, folder folds, villain2 calls $2, 2 folds, Hero calls $1.50.

I preferred not to re-pot this out of position, so I just called.

FLOP [board cards 3[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/spade.gif[/img]] (Pot $8.50)
Hero checks, villain1 bets $8.50, folder folds, villain2 calls $8.50, Hero raises to $42.50, Villain1 bets $87.10 and is all-in, villain2 folds, Hero calls $4 and is all-in.

So what do you think? I considered calling, but AA is difficult to play out of position and if my flush hits I'm in danger of not getting paid off. So when it comes back to me I figure AA plus nut-flush draw is a favorite heads-up against everything except a set. Unless the pre-flop raiser has KK, then I should be good. Against my opponents range of hands, does this line make sense? Or is it better to simply lead out for the size of the pot on the flop? Or is simply check-calling best?