Here’s a good article wherein two Entertainment Weekly writers continue the video games/movies debate. It’s a topic that’s long been of interest to me, and I have, mostly because I feel games don’t get the respect they deserve, taken their side in the past.
However, in truth my opinion is always that neither medium is truly “better”, although I do think that there are more possibilities for video games, since they are newer. But the fact is that different stories require different media to tell them. It’s really more a question of what the piece is about that determines what medium should be used, which, by the way, is probably why books and movies have been able to coexist for some time now. People enjoy both.