Patsy Said:

Do Labour really have an unfair advantage in the British election system?

We Answered:

Yes they do. The Conservatives are disadvantaged and the Lib Dems are severely disadvantaged.

One reason, as you say, is geographical distribution but there are other factors such as over-representation for Scotland and the fact that the new boundaries are based on data which is 10 years old, with the result that Conservative constituencies tend to be larger.

A further problem is that the boundaries try to maintain traditional regional geography and there is a trade-off between that and proportionality.

Additional Details:
Yes it does mean that we will have more representation from minor parties, although in any PR system there is an "electoral threshold" to eliminate fringe parties. You can set a higher threshold if you want fewer parties. Too high a threshold, however, and you end up excluding parties with significant support from the democratic system.

I don't like the idea of the BNP being in parliament but if you look at the polls, about 10% of the vote is going to fringe parties like the Greens, the BNP and UKIP. The electoral system really can't justifiably ignore 10%.