If you need to create cut scenes and cover art blender is your best choice.
This can also be done in trueSpace.
The question for a beginner is not so much which is the most powerful software but which software is the one you are comfortable with. Download them both, try the beginner stuff and decide by yourself. Nobody can do that decision for you.
3D is pretty complex. It needs months to learn the basics, and you never stop learning. Once you know the basics you can have a second look which package gives you the needed power.
