The soundstage on the Blades is the best I have ever heard. I do not think the aluminum drivers on the Blades are the top of the heap, but the overall package makes it my favorite speaker. I do not like the KEF Reference 5 because it does not create the same stage as the Blades.
With the Blades a LONG wall placement is usually the best. I see so many photos of Blades in rooms with the side wall very close to the speaker.
I have heard a lot of Wilson models.