A glance over the wiki pages for countries that use FPTP and PR suggests that PR at least correlates better with sanity.
My personal beef with FPTP is that it devolves so much power to the party base - since you can't start new parties around new ideas (and test whether the voters like the ideas), the best way to make things happen is to just get involved with local politics and influence people within the party. Since voters are so entrenched, your ideas have to be really terrible and large scale before they affect your party's chances. This means that instead of being influenced by the electorate, parties are more influenced by the personalities within them.
My personal beef with FPTP is that it devolves so much power to the party base - since you can't start new parties around new ideas (and test whether the voters like the ideas), the best way to make things happen is to just get involved with local politics and influence people within the party. Since voters are so entrenched, your ideas have to be really terrible and large scale before they affect your party's chances. This means that instead of being influenced by the electorate, parties are more influenced by the personalities within them.