I feel like trailer music is not given enough attention. When it's playing it's not the main focus because of the wonderful visuals that is the movie itself. But I have always loved it as its own entity. When I am listening to it I feel like I want to run up the highest mountain with my fist in the air. So Epic! These are a few of my many favorites.
This one is by X-Ray Dog, called Here Comes the King
This next one is also by X-Ray Dog, called Divine Crusade