I think you could post that on TUG and get some takers. I own DVC and was coming on here to see if it's even worth renting out the 2 exchanges I have booked. To me, DVC vs. a high-end Marriott isn't even a contest...Marriott wins hands-down. That's a trade I'd take, and I'm certain I'm not the only DVC owner to feel that way. Also, DVC trades in RCI, so no access to Marriott that way.
That said, wouldn't it make more sense to rent out the Marriott and get DVC with cash? I see those DVC exchanges rented on Ebay so cheap.