What is your move here?

[esbesb]

What is your move here?

NL online $30 buy-in tournament. 179 players entered, down to 23. Top 20 pay, but real money starts at about #5.

Blinds are 200/400 with 50 ante, so each pot starts off with 1100.

I have a pretty healthy stack of 9000+, which is good enough for about 6th of the remaining 23 players. "Bigstack" is the only other player at the table who has me covered, and he is directly to my right.

I am on the button with AKo. It is folded around to big stack in the CO who puts in a min-raise to 800. He has been min-raising from the CO at least every other orbit and usually collecting the blinds without a fight. I have both blinds well-covered.

Your move? Why?

I'll hold off on my thinking or results so as not to prejudice the responses.

Thanks.