aok:
for made hands, it's more like 90/10, in my db anyway.
~30K hands, in descending order of value:
Net Winners:
full house (1.31%)
three of a kind (3.53%)
flush (1.57%)
straight (2.70%)
four of a kind (0.09%)
straight flush(0.01%)
Total: 9.21% of total hands
Net Losers:
two pair (14%)
one pair (44%)
high card (32%)
80/20 would be about right for starting hands though...