Navantis,
What was it about the 802's your looking to improve on? If you went with Wilson or Avalon products, which is what I'd do with your components, you's more than likely be looking at considerable room treatment to max their performance. These products are so revealing that they are a royal pain to deal with, but if you are willing to tweak your room they are magical.
I have a 335 and Wilson 5.1's and they are a fantastic combo. But, it's taken me years to dial in the system to this level of performance. The room is the great unknown and it took me forever to finally find the spot to make it all sing. The point is the better the system, and your stuff is state of the art, the more the room becomes an issue. I agree with Cytocycle on cables, Transparent or MIT are best with Wilson.
Now that I've said all that I'd still like to know what you feel is good and bad about the 802's so I could perhaps be more specific. B&W's are a bit more laid back than Wilson or Avalon and if you like the tonal balance of your 802's then larger B&W's or Revels might be the answer.
