I've been reading this thing forever...its semi videogame related, so here we go.
From the rating of Angelic Orders @ http://www.bookofratings.com/angels.html
The highest rank of angels, the Seraphim have the task of constantly circling God and telling Him He's great without actually looking at him. This pretty much fits in with popular notions of core angel skill-sets. The weird thing is that they have six wings and four heads. That's eerie. It's not the sort of thing I associate with angels. That's the sort of thing I associate with Final Fantasy boss monsters. Maybe evangelists could work with that. "Jesus is the ultimate save point" or "Christ is my walkthrough" or "If you spend enough time raising chocobos you can get the ultimate weapon: not going to Hell!"