As an assassination rogue what is the best stat to buff with food currently?

It seems like the best stat to buff for Assassination Rogues changes often, so what is the best one to buff currently? With cooking, I can buff a stat by 90, but should it be Agility, Critical rating or Haste rating?

Thanks.

Agility.

Agility is worth roughly two times as much as the next best stat for Assassination rogues.

Before you can answer this question, there's one very important question to consider:

Are you hit capped?

Until you reach the cap, +hit is, bar none, the best DPS increasing stat. There have been a few mentions by blizzard designers that this is intentional.

If you are not, eat some Grilled Dragon if it's available.

Only after reaching the +hit cap should you start in on the +AGILITY of Skewered Eels or Seafood Feasts