I know that it depends on the player profile/stats and position at the table... but in general, when you open the pot and you do get 3-bet by 1 villain, is it more profitable to throw a 4bet or to just call and keep all his 3bet bluff+value range ?
I think it’s better to mix our strategy, sometimes we call and sometimes we 4-bet. One of the criteria I use to put up a 4-bet is both my stack sizing as villain’s stack sizing, e.g, Hero has 102 BB and Villain 79 BB, after it 3-bets, so I will 4-bet 99% of times using a polarized sizing (2.8x to 3.5x) to force the short stack to go all-in preflop ASAP.
Another example, Hero has 150 BB and Villain 110 BB, I’m 4-betting 99% of times too.
I’ll will also play more GTO if Villain tends to be a regular or not, i.e, I’ll 4-bet AA and the respective bluffs that goes with it, A3s-A5s (same amount of combos of AA).
Now if Hero has 100 BB and Villain 100 BB, I’ll call 3-bets more than 4-betting, in position. OOP I’ll 4-bet more as well.
Many times is more profitable to call more 3-bets with AA and 4-bet more often the suited baby aces, if we do own a solid tight image, cause villain isn’t expecting us to call 3-bet preflop with AA.
Sometimes I wouldn’t even 3-bet AA preflop, just call the raise preflop and wait for Villain to hang itself. When I’m seating in the BB and SB folds, and it comes a polarized preflop raising, specially.