AA vs flop raise in 3 bet pot

[Hendricks433]

No reads on villian, hes 20/13.3/11 over 75 hands. Running bad and tilting some so im questioning my play. Do I always felt AA here?

Full Tilt No-Limit Hold'em, $0.50 BB (6 handed) Full Tilt (http://www.flopturnriver.com/reviews/Online-Poker-FullTilt.php#converter) Converter Tool from FlopTurnRiver.com (http://www.flopturnriver.com) (Format: 2+2 Forums)

UTG ($28.50)
MP ($48.40)
Hero ($48.80)
Button ($80.70)
SB ($68.25)
BB ($48.90)

Preflop: Hero is CO with A/images/graemlins/diamond.gif, A/images/graemlins/heart.gif.
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $1.5</font>, <font color="#CC3333">Hero raises to $5.5</font>, Button calls $5.50, <font color="#666666">2 folds</font>, MP folds.

Flop: ($13.25) 4/images/graemlins/spade.gif, 5/images/graemlins/club.gif, Q/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $9</font>, <font color="#CC3333">Button raises to $20</font>, <font color="#CC3333">Hero raises to $52.3 (All-In)</font>, Button calls $23.30.

Turn: ($99.85) 6/images/graemlins/heart.gif <font color="#0000FF">(2 players, 1 all-in)</font>

River: ($99.85) J/images/graemlins/heart.gif <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $99.85

[slush420]

yep always felt here.. he could easily have aq or AcKc here.

[creamfillin]

This spot is a great deal +EV. My money is going in here every time with a smile.

[CubicZirconia]

Stack to pot ratio on the flop is about 3.25. I'm putting it in with an overpair here.