right it seems i"m going against the flow here -
1. Try not to go all in these spots [AQ HAND] its better to be the shover rather than than the 2nd to act unless you have a good idea of the villians range.The benefit of being the lead bettor is you force your opponents to make a choice for there tourny lives and sometimes they will fold the better hands and you will pick up the blinds. [hindsight is great when you know the opponents hand afterwards]
Just think if he had pushed his whole stack in preflop would you of called? 1.2 to 1 odds to double up? what range of hands would you put him on? is he LAG TAG etc
had you picked up any pattern to his raises? had he been stealing a lot before hand? you had 45% equity to call if he had shoved , if you poker stoved it what range would you put him on? he was going to call you after you re-raised all in,he was getting 3.95 to 1......if you thought he had 22-JJ in his range to raise 4x then you had about the right price just.My preference when getting down to the last 2 or 3 tables is to lead 1st in the pot which then gives me the chance to win pots uncontested . if i"m down to my last 8 to 14bb depending on my opponents styles i will have a range of hands that i will open shove first in [but i adjust this range to what i think there calling ranges are] sometimes if the situations are right it will be any 2 cards.AS long as you keep learning and questioning your moves and plays, you will make better decisions in the future.
2. DO NOT MIN RAISE ACES ON THE BUTTON it only gives the big blind a really good price to call any old rubbish.When the small blind made that small reraise DO Not make a small reraise back unless you have a good read on your opponents range of hands so that post flop you know where you are.Make a bigger reraise 3 to 4 x or go all in and punish him for the stupid reraise preflop.
Please give your reads on the players if you have any, and stack sizes of opponents at the table, players left in mtt your position etc etc as much info as you can give and that will help in giving you better feedback..
Try pokerstars or Full Tilt if you are intrested in big field big money mtts with good structure as they are the best two mtt sites.