I've never stayed at GF, so I can't really give you a valid comparison. However, if you're familiar with the Poly, WL sort of has a similar feel to it, except that it really has the main lobby, and two wings surrounding the feature pool, open on the end facing the lake. The Poly similarly has the GCH and two longhouses surrounding its feature pool and is open facing the lake. Of course the Poly has all those other longhouses, while WL really has no other buildings, except of course the Villas.
I found WL very slightly easier to get around than the Poly. It's also easier to walk around indoors than the Poly, which really separates its longhouses more, for obvious theming reasons.
I'd say WL is probably just slightly more spread out than GF, simply because it seems to accommodate more guests. But then, if you get a woods or standard view room near the lobby, walking around to the food court, lobby, etc. really is quite easy and quick. The WL has the quickest elevators I've ever seen. If you get a courtyard view, you're more likely to have a bit of a walk to the lobby, since most courtyard view rooms are along the wings.