My existing steel gutters have corroded and I am planning to replace them, a contractor recommended to use aluminium gutter, another contractor said aluminium gutter will deteriorate in the weather and suggest to use thicker steel gutter instead.

I understand the both metals will corrode in the air, and it is matter of which will corrode easily, or which will last longer.

I there someone who has used aluminium gutter in his house, and what is your comment on aluminium gutter?