AK is this too weak preflop?

[KHALI]

Early in a $10 I was dealt AK in middle position. All limpers before me, I raise it up to 80(pot was 70, 4x bb) a player later raises to 200, button reraises to 400. First limper calls(hmmm). I thought for awhile and folded based on a couple things. One, I feel I am probably one of the better players at the table and this maybe isn't the best time to get all the money in with probably at best being a slight underdog and the early limp cold call worried me. My question is without knowing the particular opponents would this be a fold or a push all in for you and why or why not?
I ask this because almost identical situations have come up twice in the past week or so. First time I would have been up against KK and 99 and the second time the best hand was AJ.