The title and OP just mention AT in general. This answer narrows to ATs. I agree in general though. A typical 3 bet range we can use for example is AQ+, TT+ for CO vs BTN. This could be wider but for the sake of simplicity we will go with this. In this scenarioI think ATs.
In terms of hand ranking, they are almost the same. But ATs has potential to cooler BTN 3b range when an Ace hit on the turn or river. Also blocking some value hand. 3/4 of ATs would have a bdfd as well. JJ doesn’t block any value. And fairly small potential to improve.
Using the situation you described and assuming 6 players are playing, if you have JJ, then your odds of winning is roughly 36%:
https://app.edge.poker/?n=6&h=Js,Jh&s=10h,4d,2h
If you have AT (non-suited), your odds is also around 36%:
https://app.edge.poker/?n=6&h=As,10c&s=10h,4d,2h
So, I guess it doesn't matter too much. But, if you have A hearts on with the flop I described, your chances of winning becomes 42%.
https://app.edge.poker/?n=6&h=Ah,10c&s=10h,4d,2h
So, it depends quite a bit on the flop.
I can´t forget this situation.I opened 2bb on cut off. But, BTN raised to 4bb & I called.
The flop is T42r. BTN raised 30% of CB.
Which hand is more valueble for me to make a call?
1. JJ
2. AT
I can´t forget this situation.I opened 2bb on cut off. But, BTN raised to 4bb & I called.
The flop is T42r. BTN raised 30% of CB.
Which hand is more valueble for me to make a call?
1. JJ
2. AT