All we can do is speculate, but I'd venture that at least a couple of them would have had more rings than Mantle if they had been afforded the luxury of having the Yankees on their side! Especially Williams, in my mind, but certainly some of the others. The only reason I singled out Williams is that his name really popped off that list for me. Thinking even more about it, wow ... Mays with a powerhouse team behind him?! Wow. The others all deserve consideration for the question, that's for sure.
Regardless, none would have as many rings as Crosetti!