this is played by another player that asked me after the hand how i play it: 

blind 600-1200,the utg shove 6,6 k ,utg +1 snap calls(50 k stack) hero is utg+2 (40 k stack) he calls ak..

i told him im 100% there 3b- calling( the utg is not a competent player to trap aa kk) and even i prefere shove the second option instead of flating(the pot is around 15 k so its almost half his stack if the caller  folds and he is ahead by far of the short range) 

what u think?