Renting DVC will get you all the perks of staying onsite at WDW (EMH, transportation, 60 day advance FP, etc) I think the biggest con to renting points is you're likely to loose your money if you can't make the reservation. DVC rental store has an additional cancel for any reason policy for a $1.90/point rented with a minimum cost of $190. You can also look on the DVC section of DIS, they have a forum for point rentals direct from members if you want to try that route.
If you decide to rent points just be aware that resort availability will be limited as Novemeber/December is a popular time for DVC owners to try and use their points.