Battier averaged 4.2 boards for his NBA career. I think Cade will be better rebounder because he has more length (7'1 vs. 6'11 wingspan) and he will not need to be primary scorer in NBA. Game has changed as well, much more space and Cade is very physical in the paint.
Loved Walt Wiliams, I can see how you got there. Cade is GSW Iguodala for my money. Finals MVP but not the top 2 player on his team.