Here's a very interesting graph:
This shows the distribution of income under the 1979-97 Conservative government, and the 1997-2010 Labour government. Something tells me the present bunch will be edging toward the former rather than the latter. I guess this is what the Liberal Democrats mean when they talk about 'building a fairer Britain'.
Graph source is page 30 of this Joseph Rowntree/Institute for Fiscal Studies report here.