I think we have an easy bet/fold on the flop given the action.

Same here except that i think it's an easy call :)

I mean you're playing two fishes, the agro one doesn't raise your cbet and god only knows what the other one could have here to shove.

I dont like 3betting JJ against an UTG open. I dont think the CO shove is the problem but rather the UTG player in the middle of you who could potentially be slowplaying a bigger pair.

As played I would call the all in here. I don't think UTG would slowplay bigger pairs on flop there vs 2 opponents and with the FD on board. I think when UTG calls probably has a FD and CO might be shoving a 9 or a FD or some kind of Ac5c, Ac2c.
I would've just called pre though.

3bet pre is the best move imo.
Is there any merit to checking on this flop? We have the Jc blocking a lot of broadway FD's villains may have called with pre and both are aggressive villains.

Preflop action is really dictates by UTG being over aggro and really bad imo. He is the type of player who can have K3o OTF imo, I except him to call my 3bet with nearly all his opening range (at least all suited ones imo). MP is lose too and can call with everything (he can have K3o too imo).

The other benefit of squeezing is because of BTN who is short and can just feel commited and shoves 22 or A4s against my squeeze (plus it gives me the opportunity to reship over his shove when UTG and/or mp has already called which is great)

As I said I would normally always call in this spot and not squeeze.

both preflop options are fine. Im not folding flop vs these two guys, but Im not ecstatic or anything.