100/200 SH AA hand with nut low draw, delaying the raise until turn

[2handed]

Good 100/200 game online with 6 players. I have been winning and showing down big hands. Villain is probably a losing player and is not overly aggressive, but is also not a complete moron, just not too good or sophisticated, my type of opponent.

Folded to me, I raise on the button with A [img]/images/graemlins/club.gif[/img]A [img]/images/graemlins/spade.gif[/img]J [img]/images/graemlins/spade.gif[/img]4 [img]/images/graemlins/diamond.gif[/img]
Villain calls in the sb, BB folds.

Flop: 2[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] (450) He checks, I bet, He checkraises, I call.

Turn: 9[img]/images/graemlins/diamond.gif[/img] (850) He bets, I raise, He 3bets, I call.

River: Q:hearts: (2050) He bets, I call.

Your Thoughts? I am interested particularly in villains flop checkraising range, which based on board could include all sorts of combo draws. Is calling the checkraise and raising a safe turn card or card that makes me the nut low a standard play against an average villain? Thanks