Allin preflop, KK vs QQ vs AK
KK and QQ are equal stacks, 200 chips.
AK has 100.


KK is 55% to win the whole thing.
KK is 80% to more or less break even, when losing to the ace, by winning the side pot vs
QQ.

so the ev for the first pot:
300 chips total *.55 = 165
plus
200 chips total for the KK/QQ matchup * 0.8 = 160

for a total of 325 chips, very roughly, take per attempt. Net 125.

The variance, now.. that will murder you :]