I have only stayed at POR. And I love it!
To me it comes down to how much you plan to spend time on your balcony at WL. If you are the type of person that enjoys time on the balcony, overlooking a parking lot or delivery area would not be much fun. I would also worry about noise from the delivery trucks with that location.
Some pros to WL are: More table service options, balcony, slightly larger room (340 square feet vs 314 at POR), boat to MK, beach area to enjoy Electrical Water Pageant and Wishes. You can also easily boat over to the CR which has lots of dining options and hop on the monorail to other resorts and the TTC.
Pros to POR: Recently redone rooms, more pools, way better counter serve options, boat to DTD, closer to Epcot and DHS, cheaper, live entertainment at the lounge as well as being a "sister" resort to POFQ and its food court, pool and live entertainment at its lounge.
For what its worth, I would never pay more for a view room at POR or any other mod. Since you do not have a balcony, its not like you will spend a lot of time admiring that view and given the fact the walkways are right outside your window, you might not want to even have the drapes open to enjoy the view from inside the room. Now I have seen photos of the beautiful river views at POR and POFQ, however, I would still not pay extra for one. Preferred location and Royale rooms, yes, view no. That is just me.
I don't think you can make a bad choice, but have to say we love POR. But really want to try WL someday. Its just for us, with our 10+ day trips, I can't seem to want to pay that much more over a mod for a balcony and a room that is only 25 square feet larger.