I'd like to keep in all of the Ax and Kx hands that we dominate here so feel like flatting is fine, but as we miss 2/3 of the time and by flatting we open it up to go multiway should we 3b here instead?

My main concern is 3betting then whiffing the flop. If we cbet and he calls I feel like we have to give up, but maybe that's not that bad. Is this a better line, though, than 3b jamming pre? We're still a long way from the final table so my main aim is to pick up chips - I guess I just wonder, which is more +cEV... flatting, 3betting or jamming?