The question of "Mac vs. PC" has started holy wars on computer forums. It also led to the notion of platform bigotry, the condition where people are so gung-ho about their platform of choice that they actively disparage anyone who doesn't use it. (This also causes certain users to blindly accuse publications of being biased against a certain platform, even though four out of five current Videomaker editors happen to be invested in both platforms.)
Watching films is a classroom in itself, yet you really have to have the right tools to become a critical viewer. All good directors are students of film. They devour film, looking at the way their peers chose to present the script - their shot choice, transitions, music and form.