English Parliaments, Fairly Elected
I'm not a great fan of the asymmetric devolution practiced by Labour over the last ten years. Giving different powers to devolved assemblies and parliaments in different parts of the UK, and no devolution in much of England, whilst it isn't the constitutional atrocity the Tories claim, does keep the West Lothian question open and allow charges of intellectual inconsistency to be levelled.
But an English Parliament or English Grand Committee of MPs isn't the answer if that institutionalises the Tory South East dominating the Labour areas of England. That's just an England-only version of the UK situation that created the Scots demand for devolution in the '80s.
Personally I would favour full symmetric devolution with each region and nation of the UK enjoying the same powers that the Scottish Parliament currently has. You might start to see policy innovation and competition to attract investment and migration between regions that would eventually lead to better government nationwide.
As in Scotland and Wales, it would be important that each assembly was elected by an electoral system that prevented the region in question becoming dominated by a single party. Will the Tories be as selfless in giving away power in the south as Labour was in accepting PR for MSPs in the Scottish constitutional convention process?
The 2005 General Election results if reflected in a proportional electoral system would have produced regional assemblies in England looking something like this if each had 100 members and a 5% threshold for getting seats:
East - Con 48, Lab 30, LD 22
East Midlands - Lab 44, Con 37, LD 19
London - Lab 46, Con 32, LD 22
North East - Lab 57, LD 23, Con 20
North West - Lab 50, Con 29, LD 21
South East - Con 51, Lab 24, LD 25
South West - Con 44, Lab 33, LD 23
West Midlands - Lab 46, Con 35, LD 19
Yorkshire - Lab 50, Con 29, LD 21
of course London's Elected Mayor would continue in place but with powers equivalent to Scotland's First Minister. If there was a great urge to have single-party executives in each region, you could have an equivalent to the London Mayor - a Directly Elected First Minister - in each region and nation.