AK OOP facing EP raise

[Proofrock]

I'd 3-bet preflop to around t3800. That conveniently leaves you with a pot-sized bet to shove in on the flop.

[Larude]

I think I am either shoving or calling, if we reraise and stick it all in on the flop we will fold out a lot of middlepairs if a K or A flops + if no K or A flops we will fold out the hands like AT and AJ which we were in front of already!!!! If this villain will call a shove with AJ and AQ I am shoving here, most villains won't though I think... (he seems loose but that loose?). I prefer to play a flop at which I will lead a decent amount of the time if no A or K hits and it contains middle to low cards in order to let him fold AJ and AQ post flop.

[Pokerfarian]

I don't hate a flat call here, it seems to leave a decent pot:stack ratio with which to play AK with, and since he's UTGvBB he's going to cbet an A/K high flop almost all the time. Also, hands like AQ remain in his range -- we're going to stack him more than he stacks us.
Shoving tends to be my default in these situations. It has some FE as he's likely to fold whatever the lowest PP(s) he opens with. This opp might call AQ, which makes it even more +EV.
I don't like a go n go in general, and I don't like it that much here. I don't like it generally from a metagame/shania aspect of playing perfectly -- a shove gives your opponent the option to fold or put all the chips in, whilst a go n go gives your opponent both of those options AND the option to see a flop. Giving extra options isn't great, but can be the most exploitive. Here I don't think it is -- he may fold AQ on a J86 board, he may fold TT on a AJ6 board, but he won't make the folds we want him to like 99 on a J86 board. Overall he plays pretty "well" against it. One advantage of a go n go is if he only plays shove/fold against it (I would against a ~3K+ish raise) is he might shove slightly wider, even if he doesn't actually have FE. (We're enough of a favourite over a range of "AQ, 99, TT" to want him to)
Overall it's a very tricky stack size imo to say which is best. I prefer a shove to a go n go, but can't really decide whether flatcalling is more +EV than shoving.