A henway simulation with 4 players and 1000 trials

Game Players
1 2 3 4

Rank # of Wins /
# of Occurances
Chance of
Occurance
Chance of
Winning
Chance of
being the
winning hand
Straight Flush 19/19 0.5% 100% 1.9%
Four of a Kind 48/50 1.3% 96% 4.8%
Full House 549/871 21.8% 63% 54.9%
Flush 247/703 17.6% 35.1% 24.7%
Straight 113/758 19% 14.9% 11.3%
Three of a Kind 6/95 2.4% 6.3% 0.6%
Two Pair 18/1376 34.4% 1.3% 1.8%
One Pair 0/127 3.2% 0% 0%
High Card 0/1 0% 0% 0%