Effective voting under STV and PR

Certainly the difference in effective votes between FPTP and IRV/RCV is not too significant -

FPTP range is say 24 percent to 70 percent;

IRV range is say 48 percent to 70 percent;

while in every case PR and STV is like 80 to 90 percent (for the elected members in a district as a whole)

another way to measure voter satisfaction is how many voters  see 

-preferred candidate elected -- generally about half

Scotland local elections 2007:

 in 2007 nearly three-quarters found the candidate to whom they had given their first preference had been successful.

another indicator -- 40 percent of seats were filled in first round, so prior to the transfer of surplus votes, you can see that many more than 40 percent of voters saw their first preference elected, and then in many cases the vote was moved to try to elect someone else.

from https://www.electoral-reform.org.uk/wp-content/uploads/2017/06/2007-Scottish-local-elections.pdf  (p. 74, etc.)

-someone of their preferred party elected (party label of their first preference) - about 80 to 90 percent.

looking at Renfrewshire Council election 2022

(Wiki : "2022 Renfrewshire Council election")

                                                         1st pref for ultimate winners   party rep for 1st pref

Renfrew South and Gallowhill (3)      78%                                  89%

Paisley Northeast and Ralston (3)     94%                                  94%

Paisley Northwest   (4)                        76%                                  78% 

Paisley Southwest (4)                          86%                                 86%    

for some reason there is strong correlation between these two indices, even though one is based on specific candidate choice and the other on party label. 

Anyways I can see why voters would be happy, with no need for the "one-member = universal representation" myth of WTA systems.

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