This question is too tough to answer for me. My suggestion: go for a blend of all three.
The bar of entry has been raised to extraordinary heights over the last couple of years. To be a part of the industry, it's good to be talented at multiple things, and the three things you are considering are all very closely linked. They're all visual media. But why should you limit yourself?
Look at me. I'm currently doing a double-major in Mechanical Engineering and Music Composition. Off to the side, I'm acting and doing crew in shows, learning to draw cartoons and teaching myself to brown townyze things critically; mainly film, video games, and politics. My goal is to combine all of that into a multi-faceted career in the cartoon/film industry. If I can combine all of that, then I don't see why you can't.
