Midway through a one-day, 25k GTD live MTT. Hero has run a 25k starting stack up to about 170k. Average stack is about 50k.

UTG has 55k. White guy in his 60s or 70s, plays a little looser and better than is typical of that demographic.
UTG+2 has 75k. 30s white guy, just moved to the table an orbit before, no previous history but superficial read is he seems competent.
Cutoff has 63k. He is an old man who kinda seems half senile: struggling with chips, slow to follow the action. Moved to the table with a big stack and has done some weird things like open-shove 40 bigs. Has folded to aggression after limping/calling a couple times.

At 300/1200/2400 blinds, UTG raises to 6k. UTG+2 re-raises to 17k. Folds to cutoff who calls without any hesitation.

Hero finds AKo in the BB and decides to jam for 75k effective. Thoughts?

Well, you can throw trying to range all 3 Vs out the window. Jamming has merit, but you are very likely to be called by at least one and I'd worry about losing outs to at least one of the three.

Calling 10% of your stack and acting first on the flop is a lower variance option as it allows you to fold flops that you completely whiff on.

Based on given info, utg+2 seems strong since he just moved to table.
Flat/ and you might face a 4b shove from either utg or utg+2.
Jam and you get called by one of the two.(maye both, quite possible utg/utg+2 also has ak)

Close spot, but since you're not at risk, rip it in !!
I think its optimal

Seems pretty standard...

Flatting here is terrible. You're not closing the action, and seeing a flop 4 ways OOP with AKo seems like a poor way to realize equity.

Jam or fold, and at these stack sizes, I say jam. If we were >50 BBs effec, I start to lean towards fold.

This was more or less my thinking. Folding felt too nitty. Our blockers reduce the chances we are dominated and the likelihood that there will be dead money in the pot if we shove makes a flip more appealing.

On the other hand I do think there's merit in taking a lower-variance line when we think we have an edge in a tournament, even if it means sacrificing a bit of EV.

Easy all in

I've learned from multiple threads on here people are way too hesitant about jamming AK pre. Just rip it bud.

OK, seems to be a consensus. Thanks to all for the responses.

Some of the high frequency posters really confuse me. Flatting here, for real? Looks like an easy jam. CO seems to be dead money, will almost never have a better hand and probably has some random hands as well, UTG+2 probably has a strong range but still not strong enough to call or fold, especially given all the perceivable dead money that's out there. Even getting two folds and flipping against UTG+2 here is pretty good. Jam, and feel pretty happy about it.

Rip it. You can't flat 17K OOP playing multiway.