excellent mega yacht lay outs

In another topic of this forum, talking about the lay out of Northern Star , the suggestion was done to start a topic about : excellent lay outs.
So, lets discuss the interior and exterior layouts (not the styling as such!) of megayachts.
Take Northern Star : she is excellent : many large open decks, many spots in and on the boat to enjoy life in groups or more intimate, privacy for the owner in his suite and own forward deck, a lot of light in the guestcabins on main deck et etc.
Any other ideas about which boat is excellent and why ??