I don't buy all the cynicism about FPTP. It worked brilliantly in the eighteenth century when 7 Cornish landowners and a horse called Malcolm could elect the Honourable Captain Ross Vennor Poldark to be the Member of Parliament for Truro so he could travel up to Westminster for 6 weeks a year...
Blair was, in my view, an outstanding Opposition leader, regardless of whether you agree with his politics or his record in office.
He was dynamic, optimistic, compelling, looked like a 'winner' and surrounded himself with an excellent team that systematically rebuilt and re-branded the Party...