I've switched to anodized aluminum recently for my backpack gear. Here's why:

It is still lightweight
It is more stick resistant than plain aluminum or stainless
It can be seasoned almost like cast iron
It is just thick enough it distrubutes the heat more evenly
It is easier to clean
It does not alter the taste of food cooked in it
It is becoming as economical as stainless cookware
It resists wear better

If I had a mule to pack my gear instead of putting it on my back, I would use cast iron for everything except the coffee pot to cook with. Nothing does better with a wood fire.