I think I probably like the first movie better for the same reasons Jeff does. 1 is more of a gritty sci-fi movie while 2 is closer to a straight up action movie, and I prefer the former. I very much enjoy both movies though.
I've heard a couple speedrunners explain why they do what they do. Basically they said that speedrunning just gives extra life to their favorite games. They played them casually till they got boring, then they dissect it and run it until they know everything there is to know about the game. I've also heard some runners say that running a game so much made them sort of hate the game, so maybe there is a fine line to how far their dedication to a game should go.
I don't subscribe to very many people who make content regularly on youtube, but I am a big fan of Sips and Hat Films from the yogscast. It's good for quick fifteen minute chunks of entertainment. There is of course a lot of minecraft played, (which at this point everyone seems tired of except hundreds of thousands of kids) but even that is usually entertaining, or at the very least makes for good background listening. I feel like most of the yogscast members make acceptable/good content actually. My little brother really likes watching them and I don't feel that bad about letting him because it's not overly inappropriate most of the time and it won't numb his brain too much, which are two things that I don't think can be said for a lot of other popular youtube channels kids watch.