Can't help with first week of June as I've never been there at that time....us NYers still have school in session!
However, I've stayed at both POR and WL. POR was nice, but WL is wonderful. If you can afford WL and you are bringing along parents for a first-time visit and you really want to wow them, then WL is the way to go (IMHO). Anyone walking into that lobby for the first time is usually pretty wowed by the place.
Just speaking from a practical resort comparison, POR, like all moderates, is built with outside corridors - motel style. You open your window drapes to enjoy the view, then you have to realize everyone else is going to enjoy the view of you!
WL is hotel style - inside corridors with nice balconies for enjoying that morning cup of coffee, or a relaxing drink in the evening.
POR has double beds, WL has queen beds. WL is a smaller resort - not so spread out. Even from the farthest room, the food court, pool, etc., never seems that far away. At POR, there's a bit of a walk depending on room location. WL has the boat to MK, POR has the boat to DD. We thought the MK boat was of more benefit. WL has a bus to the TTC (right around the corner) from which you can walk to the Poly or go just about anywhere you want to go.
Overall, we enjoyed the theming and ambiance at WL much, more more than at POR. And, we thought the CM's at WL were just super. My son was sick one day and the CM's were unbelievably nice - gave him a Tigger so he could "bounce" back on his feet in no time, the chef from Artist Point called him to see how he was doing. Really super experience. So - I'm a huge WL fan - can you tell??
But, leaving the warm fuzzies aside, if you can afford to stay deluxe, just for the larger beds, inside corridors, level of service, and the balconies, that's the way to go.