I do it any way I want. I do baby quilts with the wrap over because I usually love the backing material, and I want it all around the front. So earier, but so cute. I'm working on a quilt as you go. the backing material, and sashing is the same material, so it doesn't make sense not to wrap around with the same fabric. Other quilts like wall hangings, I use muslin on the back, so I make a binding that sets off the quilt.. No rules, it just what ever you like.
PS. if that cheating, then wouldn't using a pattern be cheating. So I don't think so.