Mmm, Harry/Peter and Harry/Remus/Sirius - couldn't have said it better. Or anywhere near as well, obviously.

You wrote Peter/Sirius, didn't you? That one stuck in my mind (there aren't all that many fics that do so, without reminders.) I'd love to see people come up with more Peter/Sirius.

Remus/James is so very much about James pushing Remus past his limits it appeals to me more and more.