Anna Keenan, of Prince Edward Island Province, Canada, believes that the “Dual Member Mixed Proportional” System is the best proportional representation system. It is called DMP for short. Here is a slide show to explain how it would work for the legislature of Prince Edward Island. Thanks to Michael Hunter for the link.
Inexact -\
Party Seats = Party Votes x Total Seats / Total Votes
Exact – move votes from losers to winners via pre-election candidate rank order lists.
ALL votes count.
Winners have voting powers equal to final votes received.