AK question

[Dirtsqrl77]

Without considering reads, say you are new to a table.
Stacks are in and around 3k for all players low being 1500, high 4k. 3500 for the original raiser, 3000 for the hero.
Blinds are 50/100

Hero picks up AK in MP.

Situation 1. - A min raise in front of you.

Situation 2. - A 3xbb raise in front of you.

Is AK a hand you re raise with in these situations?
My thinking is that doubling the min raiser to 400 woudld be a good play. As for 3xbb, my first thought is calling, a read on the raiser would help in this decision.

What do you think?