Angels are said to be celestial beings that get their graces from a God. They're not always beings that have no free will at all. There are also different types.
Opinions Part Edit
I know a few Angels that are actually really nice. They're not all warmongers like some people say. In some of my projections I believe there is a male Angel who helped me out a bit, but I choose not to disclose his name. I can also say that Cherubim, the second highest rank, are strong, being that I fought one in one of my dreams. And as far as I can remember it was a tie. At least to me they have a strong celestial feel to them. ~Cruggles