It reads to me that he believes JW is a top three brand, along with Ritz-Carlton. Which it isn't.
“It is often ranked one of the three best luxury brands in the world with Ritz-Carlton, which we also own, and another brand, which I won’t name.
RC
Mandarin Oriental
Peninsula
Four Seasons
St. Regis
And depending on what you call a chain - Jumeirah, Aman, Banyan Tree, Oberoi , Raffles, Park Hyatt, Shangri-La, etc.
I'd say JW is somewhere in that 6-15 region.