Party WSOP Step 6 hand

[RackHama]

WSOP step 6, 7 left. Info is very approximate, forgot to get HH.

1st = WSOP package
2-3 = Step 6
4 = step 5
5 = step 4
6-7 = step 3

Just went from shortest stack to biggest stack by going all-in w/ K9s and AKs, getting called and winning previous 2 hands.

Hero is big stack w/ 2500
Villian is 2nd w/ 2000
everyone else scattered around 600-1700.
SB and BB both have about 1200.
Blinds 150-300 (I think 1st hand of this level)

Villian is UTG and raises to 800
Hero has JJ in UTG+1

Push? Easy decision?

Villian is a good player, had stolen a few as big stack but not crazily aggressive. Had shown down 2 hands (AK, AJ?) on raises of 3xBB in EP/MP recently.

[suited_ace]

I push. Most players are über-tight in this spot, he'll probably fold everything but AA or KK, maybe AK and QQ.

[kyro]

I don't think a good player is going to be "ubertight" in this situation.