Final Table Hand from 180 player SNG/MTT

[WinBig]

PokerStars 20 table SNG/MTT. Final table and all 9 players are still in. I have 46,000 which is 3rd in chips. Blinds are 800/1600 with 75 ante and the villain has been raising frequently since it got down to the final 18 players.

Three hands earlier the villain had raised preflop to 4200 and I reraised to 8000 with AK offsuit. He called and folded to my 8000 bet on a 9d4h2h flop.

This time the villain has raised to 5200 and again I have AK offsuit. Do I play this hand the same way? How about pushing to put him to the test? I don't feel flat calling is an option but I would like to hear what others think about how to play this hand. Results to follow.