I too would only be able to offer comments on Blair's leadership through the eyes of an outsider. However, I do think that it is a pretty good thing when a government official can realize he or she has done all that can be done, and step aside so some new blood can have a go.
I would agree that it was good of him to realize when it was best to step aside. But for some reason I liked him. I don't know if it was more his personality in general because I didn't agree with everything he supported.
Having lived over there until recently, I was following their politics fairly closely, and it appears there could be a big Tory comeback in their next election. Gordon Brown is competent but not that liked. We'll see.