Against the TAG, I would call w/ TT+
Against the NIT, I would call w/ JJ+
Here's how and why I made this decision- First, I assigned a range of
hands to each opponent.
This range of hands is obviously debatable, but for the purpose of discussion here is what I did.
TAG- I gave him a fairly wide range. Pocket pairs 44-->AA, ATs-->AKs, ATo-->AKo, KQs, KQo.
NIT- For simplicity's sake I gave him pocket pairs 44-->AA, and AKs. (I started at pocket 4's to compensate if he thought you were stealing... However, I don't think the numbers change very much if you restrict his range to 77 or 88+, AKs.)
I then calculated pot equity for 99+ and AKs against both player's ranges, and arrived at a weighted average equity against their ranges for each hand. Here they are (percentages are rounded):
** Anything less than AKs will be even money or worse, so I didn't include any other big aces here-
VS. TAG
AA=84%
KK=78%
QQ=67%
JJ=61%
TT=56%
99=55%
AKs=55%
VS. NIT
AA=81%
KK=72%
QQ=66%
JJ=60%
TT=55%
99=51% ** Even money
AKs=44% ** This is a net loser against a nit range-
I was a bit surprised by these results, especially the figures for AKs- It seems that calling with AKs, 99 and TT is basically a break-even play against a TAG, and AKs turns out to be a net loser against the NIT. I personally prefer a bigger edge. I am more concerned with making money against these players than I am winning as many pots as I can. The only time that I would shade the range down to include AKs and 99, TT is if the player was holding 16BB or less, and I am getting better pot
odds to call. This is an example of why I will not typically over-commit preflop vs. a shortstack like that- You are raising 20% of his stack, and it feels foolish to fold, but it's probably the right idea in most cases if you are raising with a wide range of hands.. Thoughts?