Well, depends who's in power at the time doesn't it?
Don't forget, this utter King Knut promised that English MP's wouldn't vote on Scottish matters, but then say Scottish MP's can't vote on English matters only. Which would mean the Tory's would win near enough every vote they put forward.
As George Galloway would say, they're just three cheeks of the same arse. Except for UKIP, they're effectively the product of said arse.