Which would be better: Craftsman ALUMINUM or METAL nozzles for the hose?

I am buying garden tools on Sears and they have a 3-pc aluminum nozzle set and a 3-pc metal nozzle set. I have no idea which is better.

Aluminum is metal : FYI not all metal is aluminum. Aluminum is typically weak, and will weaken more with age. If the metal hose set is anodized (colored) it should not rust.

Aluminum will not rust!