re: Poker & Shoving an Ace in SB
vs "average" opponent I think shoving is best from about this stack size and under. at about 18bb I favor other moves as we've got reverse implied odds
with our huge over shove. I'm assuming there are antes which make the shove more profitable.
vs. tight opponent I prefer to min raise since they will be folding too often so I get a good price and I lose the minimum when they wake up with a hand. And, to be clear I will fold to their 3bet whether it is a shove or not. Obviously the danger here is that the BB might call with a hand like QT that has good equity and might have folded to a shove. but I think we can win with a min bet and automatic half pot bet on any flop often enough that the low variance line is preferable when facing a tight, straightforward BB.
vs. a maniac or super aggressive action player I would actually limp to induce his shove. I know it's gross. But when you open jam A4o he's not going to call off with much worse hands but he IS going to raise you light a ton when you limp. in fact, if you limp and he raises 3.5bb with a hand like 93o and you jam....he might actually just fold which is a delight. he will call all the times he has hands like JT but that is ok. getting your stack in as a 55-60% favorite vs. a guy like this is OK if you have a plan and stick with it. and sometimes he'll have the top of his range and oh well....that's poker.