Which of these would darwin not agree with: evolution via natural selection requires long amounts of time the idea that individuals striving to survive leads to better adapted species significant weight should be given to geology and fossils as evidence of evolution common ancestry for all of life?

Darwin would not agree with the idea that individuals striving to survive leads to better adapted species. Darwin's studies showed that evolution occurred out of necessity and over long periods of time. He was the first to suggest that species can evolve from other species, which was his most notable theory.