Hello,
Unless one of your kiddo's is under 3, then I think your only option is the vacation clubs, fort wilderness cabins, or 2 rooms. Unless you want a suite. I believe the deluxe rooms (mini-suites) at WL hold 6. Check to make sure, but I think they run abount $400/night, depending on the season.
I guess it depends on how many bathrooms you need. Since you mention you're boys are old enought to go on their own, I'm guessing the 2 bathrooms would work out better.
*LOL* I remember when we were in HS, my brother spend more time "primping" in the bathroom than I did.