I have to go with kawhi Leonard. His abilities on both ends are immense and his offensive skill set has evolved like few players ever before him (he was considered a defensive specialist / role player by scouts ). Spurs homer but still think Leonard - at age 25 - is a safe bet and can be built around to win a title.
I think after that it's KD/Anthony Davis/Paul George/Harden/Westbrook/Curry in some order.
I think after that it's KD/Anthony Davis/Paul George/Harden/Westbrook/Curry in some order.