I've stayed at the Poly and really like it, but we spent our last 5 trips at POR. We can afford the Poly, but I just can't justify the cost. There are lots of reasons we go with the mod vs. the deluxe. We have our car onsite, so it's super convenient to walk out the door and go straight to the car. I (unlike a lot of people), like the door to the outside vs. a patio. We just didn't use the patio that often when we went. We don't mind the Full Size beds because the beds at POR are very comfortable. We love having a food court and restaurant. We spend a lot of time at Epcot and MGM and a drive in our car beats waiting for a bus (it was literally a 5 minute drive to Epcot). We love the boat ride to DTD. We love the quiet pools.
Now the price. We were quoted $5900 for 9 nights, Dining Plan, 10 day passes and we ended up booking POR for $2900 for the same exact package. That is a $3k difference or a whole second trip.