As the question states, I'm looking for some input from historians regarding historical philosophers. What piqued my interest in this topic is my reading of Oswald Spengler's work, Decline of the West. I've come to understand that this work isn't academically respected as an intellectual work for a number of reasons, but its scope in its treatment of historical trends has made me interested in this kind of approach to history. Are there any academically respected historians who take similar approaches?
The best known example is probably Will and Ariel Durant's eleven volume Story of Civilization. The series covers from "Our Oriental Heritage" (prehistory) up to "The Age of Napoleon" (1840) with quite a bit of depth. Throughout the text, Durant editorializes with his philosophies on the rise and fall of empires, religion and society, causes and effects of history, and the relationship of government and culture. Durant may have been more of a philosophical historian than a historical philosopher, but his is the biggest example of these approaches.