Gaming

I've played both series through multiple times on X-BOX. Personally I prefer Halo but both games have their unique good points. Regarding a movie, I have the Halo movie Forward Unto Dawn. Unless you are hopeless geek like me the movie is terrible and that's being kind. I've long wished for a well done Halo movie and that one ain't it.

Regarding a Mass Effect movie, I don't think there is enough there to draw enough movie goers. Both Halo and Mass Effect revolve around the same story line: Human hero saves universe from ancient alien scourge. For the movie to do well it would have to draw moviegoers who were not already fans of the game.

It is quite likely I am biased but i don't think a Mass Effect movie would do as well as a Halo movie because Halo is a bit more wider known. I say that because Halo launched the wildly successful XBOX gaming system and Halo has a larger fan base. That said if only the fan base shows up, the movie will be a crushing box office flop regardless of how well done.