Many times we don't even bother to vote at all. PR assures that political parties or candidates will have the percentage of legislative seats that reflects their public support. Thus, a party or candidate need not come in first to win seats. In their first elections, Scotland and Wales chose proportional systems, and a national referendum on voting-system reform is planned in Great Britain. More diverse representation.
Campaigns are cleaner, with less mud-slinging, because candidates have to run on the issues.
The influence of big money on campaigns is reduced. The Green Party of Texas is in favor of establishing a system of Proportional Representation at all levels of government. The United States should join the majority of the world's established democracies and create a system where all interests are represented at the tables of political power. Thus, in this election, liberal voters would have been able to vote for both Nader and Gore. The person who gets the most votes wins the election.