It would be quite a big change in the rules. And see some of the issues with Israel's parliament for how naive proportional voting can go wrong. (The German / New Zealand mixed-member proportional representation system works reasonably well in practice, but it's somewhat complicated.)
For a smaller change to the rules (but still a big impact), consider approval voting or range voting.
Range voting works like judging figure skating in the Olympics: every voter can give scores between eg 0 to 100 to the candidates, the candidate with the highest average score wins the district.
For a smaller change to the rules (but still a big impact), consider approval voting or range voting.
Range voting works like judging figure skating in the Olympics: every voter can give scores between eg 0 to 100 to the candidates, the candidate with the highest average score wins the district.