I've just read another of those infuriating articles which assert that this would be a good election to lose. Cobblers. This particular article is written by someone who ought to know better, Professor Norman Stone.
I think Professor Stone has been spending too much time in Turkey. The sun has clearly got to him.
If the Tories lose this election to a Lib/Lab coalition, the first thing a new government would do is to introduce PR. Not just AV, but full STV. Clegg would demand it and Brown would have to agree. And if that happened the British people can look forward to a semi permanent left of centre government.
So, no, Professor Stone, this would not be a good election for the Tories to lose. Not at all.