The way I see it - and I may be wrong - is how can you get much fairer, much simpler, than the candidate with the most votes wins?
Simple and fair, in my POV.
The PR method of voting has been pioneered mostly by the Lib Dems as they've been so cheesed off at getting a fair percentage of the whole nation's votes that they want to bend the rules in the hope of gaining a few more seats.
And the method proposed is messy and could give some very unpredictable results, an election within a constituency could become very much like spinning a wheel of fortune.
Lemme see, a candidate needs 50% of prime votes to win outright. Any percentage below that and all the second votes are added up etc etc until, after a long and to my mind messy procedure, a winner is declared. Who that winner will be will be dependent on the extra votes you give after your first vote.
Nah, to my mind it's just sour grapes on the Lib-Dems part and they're trying to bend the rules to their favour.
One voter, one vote, first past the post wins - simple.
I will acknowledge the fact that the current system of voting isn't perfect, particularly when the Tories under Thatcher decided to shift a fair few of the constituency boundaries in their own favour.
I also note that the situation atm is mostly a two horse race and that's probably not ideal but that's the way it is. At least we have more choice of parties than they do in The States.
And on a personal comment, I thought Blair was bad, cruel and unjust but the Cameron Clegg Glimmer Twins partnership makes him look like a sweet hearted Teddy Bear. Such is life