And what would be wrong with that? It can't be any worse than the muppets we've had for the past four decades!

Clearly there is no ideal system. I don't know all that much about various election systems, but it seems that there is probably one simple fault with First Past the Post which could be fixed fairly easily.

If all constituencies have different numbers of voters, five constituencies could vote in a Labour MP and one constituency could vote in a Conservative MP. So, Labour win the election and form a government. The problem is that the number of votes for Labour in the five small constituencies is actually less than the vote for Conservative in the one large constituency.

I'm not sure that the problem is this big, but surely a constituency in a remote rural area will not have as many voters as an inner-city constituency. Even if the numbers balance out along the way, can anyone guarantee that all of the small constituencies are politically split evenly, or are most small constituencies allied to one party, for example?

That has been solved as part of the bill brining in the vote for AV is that it makes all the consituancies (with a couple of exceptings) the same size in number of voters

And if you ever look at many of their past election pledges you would see that the Monster Raving Loony Party are more in touch with reality than the main parties.