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 16/16 0.4% 100% 1.6%
Four of a Kind 52/52 1.3% 100% 5.2%
Full House 569/868 21.7% 65.6% 56.9%
Flush 245/690 17.3% 35.5% 24.5%
Straight 92/762 19.1% 12.1% 9.2%
Three of a Kind 5/90 2.3% 5.6% 0.5%
Two Pair 21/1404 35.1% 1.5% 2.1%
One Pair 0/117 2.9% 0% 0%
High Card 0/1 0% 0% 0%