Mr. Simmons wrote in part-
As Richard says, IRV ignores and trashes valuable information willy nilly
and still pretends to come up with a top notch winner. All of IRV's
shortcomings can be traced back to this wasting of information.
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D-
For newer folks (and a reminder for older folks) -- with 3 or more choices
(or even 2 choices)-- there are Head to Head and place votes tables.
Head to Head Table (/ = ahead of)
A B C
A X A/B A/C
B B/A X B/C
C C/A C/B X
Place Votes Table
1 2 3
A A1 A2 A3
B B1 B2 B3
C C1 C2 C3
IRV only uses the 1st choice votes part of the Place Votes Table which is why
it is so defective.