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I will never call an all-in preflop with AK unless they are a short stack just finding a weak A and pushing (playing like a damn tourney).

I've had KK run into AA so many times to preflop all-ins, that I occasionally fold KK to a strong re-raise preflop, so I definitely don't call AK all-in preflop. This is JMO, but I think that when you are ahead preflop with AK, you can still get beaten fairly easily, so I try to wait for better spots to get my entire stack in.