[MTVN]

Yeah Osborne's legacy will be bigger than Camerons. He's the brains behind economic policy, most of their long-term policies and is likely to be next leader.

Cameron will go down as an average Prime Minister IMO. He has overseen a solid - though by no means bulletproof - recovery, sought to modernise the party through initiatives like gay marriage and increased female representation, and overall been a very pragmatic leader who has ensured stable government even in a coalition. At other times its true that he has dithered, had several fiascos like tax credits and the Syria vote, he seems to lack any real convictions and he hasn't been able to fulfil a lot of his stated aims

An average leader? Yes. I can even see the case for people who would say he is a bad one. But ruin of the country? That's just sensationalism, and its not a view that would find much credence in any serious commentary.