To expand on my earlier post, aluminum cookware can certainly be made as light or lighter than Ti but will not be as strong or resistant to dents and permanent deformation. Whether that's important is completely up to the individual, since we all have unique needs. Either will boil water in the same amount of time using the same amount of fuel, all other parameters (dimensions, lid) being equal.

There's some sneakly misleading marketing about so-called "hard" anodizing. Some marketers lead us to infer that it makes cookware stronger, which it does not. It is an effective corrosion inhibitor and surface scratch protector but it does nothing to strengthen the piece. That is a product of what alloy the piece is made of and how it's formed at the factory.

Cheers,