Yes I love Profokiev.
He had so many different styles as well. Many of his famous pieces sound like they could have been written by completely different composers.
I like Wagner too.
I also like a piece of music called Time Forward by Georgy Sviridov.
My favourite composer though if I had to pick one would be Ennio Morricone. I could just listen to his music until the end of time and never tire of it.
Other film composers I rate highly are Roy Budd, John Barry, and John Murphy.