The best thing about Mike was the change. In part 1 we see mike has a good guy turn bad and in part 2 we see a man going deeper and more evil. Vito is a great character but Mikes change is the real story of the godfather. Part 3 never showed us how Mike becomes the old weak man but just fast forwarded everything. I wanted to see the change of evil man to a man of redemption. That would have been a better story.

Sometimes its easier to relate to mike because all his life he gets dragged to a thing that he didnt want but gets sucked into it even more by his own stupid choices.