In any case though, I'd have Raylor over Obertan any day. But of course, to my mind, Ben Arfa should be ahead of both but I do have a belief that Raylor might be useful out there (primarily as protection for Simpson and I do think his crosses are decent enough like I said above) if Pardew decides to deploy a conservative system. I also thought he linked up well with Simpson actually (only at times though) in the Man U game at St. James'.
Though, the best case scenario would be for Ben Arfa to get an extended run of games in the starting lineup whereby he'll properly understand/have a feel of his responsibilities (attacking and defending) in the team. Alternatively move Jonas to the right to give Simpson protection and start Ben Arfa on the left.