Morrison and Claremont are vastly different writers/personalities, which is why I praise them for what they brought to the franchise. I think Morrison's work was largely a deconstruction of Claremont's, while also a love letter(and also, unfortunately, incorporating(editorially mandated I am sure) Singer's film-verse elements; though I will say he did the huge school with tons of students and the X-Men as teachers far better than Singer or the later comic writers who used that same idea). That said, I actually thought Claremont did a really good and respectful job of integrating a lot of Morrison's ideas into his X-Treme/Uncanny/The End work, which I consider as part of the Morrison era.