I'm steadfastly against any plurality system, living under the British system in Canada has its merits because it gives regions a voice but the first past the post system is a horrible system that props up minority voices as majority winners!
Yes, but that is totally negated by the fact that in the Westminster Parliamentary system by the general neccessity of creating a 'coalition' government from time to time.
Historial lecture time as per Canadian History - Canada's government of 1867 was designed specifically with the US Civil War in mind and what was viewed (and correctly so) as the structural reasons why the US had a civil war to begin with. And it has a bit to do with a plurality system and 'electoral' system in the US.
The framers of the system in place in Canada viewed that the US Civil War was the result of a weak federal government and strong state governments. This is essentially correct, but not for any obvious reasons and would take an entire book to explain in detail. That aside, it was decided that Canada should have a strong federal goverment and weak provincial governments. In reality, the exact opposite thing happened - Canada ended up with strong provincial governments and a weak federal government. In the US we had intended to have a weak federal government and strong state governments and we ended up with exactly the opposite (which happens to be what Canada was trying for). The moral of the story is that you tend to end up with exactly the opposite of what you intend to establish.
Never the less, any screwed up plurality issues in the US (and I agree that there are, of course) is due to the fact that plurality has essentially been killed off by legislating around the Constitution in the first place.
IOW, just because you play a game of elimination in order to reduce the field of candidates down to two, doesn't mean you have any more of a representative system in which you have run-offs or straight plurality. Run offs just give you a little bit more plurality for people to decide the lesser of any number of evils (in their diverse opinions).
In the US Constitution (as intended in theory, but the politicians here regularly rape the Constitution at every opportunity
) the individual states are represented by the Senate, and the population is represented by the House of Representatives. Senate/Parliament - Lords/Commons - all the same. It's just a difference in how the representatives are elected.
What I'm driving at is that we could probably experiment with a number of schemes because with the small number of people that choose to be RA members would essentially be a direct democracy regardless of the plurality scheme or not.
And, sometimes I'm fairly game for experimentation if it isn't likely to result in a train wreck, which this issue would probably not.