This is a discussion on call 3 bet within the online poker forums, in the Tournament Poker section; You have AA, you opened from early position, and we get 3-bet from the BTN, which is better all-in or call?
Because you are in early position, I think I would choose to either all in or 4-bet as you are first to act post flop, so you need to play aggressive. Villain should already be aware that your range is tight UTG, but just hope he doesn't realise quite how tight it really is.
It's not an easy question. Reraising after a raise usually means AA. Most often I will either call or allin. If there are several opponents against me, I will push all the chips to the center of the table.
It depends on the type of opponent that has 3 bet you.
If you're opponent 3 bets lightly in position then it's better to just call pre and let them blast a few bets off to you on flops and turns because against this type of opponent who lightly 3 bets they tend to fold to 4 bets regularly.
If the opponent who 3 bet you rarely 4 bets then it's a good time to put more money in because it's likely they will fully commit to their hand
You need to look at your opponent carefully. If this is a super aggressive player, an all-in bet in this situation is a great opportunity to quickly increase your pot with a better card If a player is playing a Tight style against you, all in is a bad idea. Calling is not a bad game, but only if you are 1 on 1 to eliminate other players with a bad card. If your bet is supported by 2-3 more players at the table, you need to re-raise so that there is a minimum number of players in the game and you do not get disappointed on the river with AA
If your scenario is in an MTT and you mention no other factors to consider then I would assume you know little about your opponent. That being the case you can't be sure the BTN will call a shove so a re-raise would be a great play but make it a substantial bet. There's an excellent chance the BTN will come back with a shove but if he calls you can now lead out after the flop with the shove you wanted to make in the first place.
If you are deep stacked, 4 bet a decent amount. If they shove, go for it. Remember that any card can hit on the flop, so going all in can be a finality.
Short stacks are an easy all in. The person wants to play and it is a positive EV play.
Now, if the person is short stacked and you are deep, the bet could be enough to make them have to go all in. This can further isolate them from people who want to see a flop, but do not have hands that can withstand aggressive play.
The goal can be to win the chips, but it has to be done in a way to not end a tournament on your part. Wait until the flop to decide on an all in if you are able. The best way to handle them is to isolate them and go from there. It is also better to recover from chip loss than it is to have to walk away completely.