Seamless one-piece aluminum or galvalume roof?

I am new here and am considering buying/ordering an 8.5 x 20 CT (steel frame, rounded V-nose - S. GA make) to convert and have several questions (which will be spread over several posts) on what to order/buy.
I plan to divide my time between Florida and Colorado (mountains 8,000 to 10,000 ft.). While I will do some hauling/traveling between both places, the CT will be mostly used as living quarters (will be well insulated with polyiso).
I am trying to decide between the "seamless one-piece aluminum" or the galvalume (standard?) roof. I have searched this and other forums/google but have not been able to find anything definitive or a discussion of the pros & cons of either. The one-piece aluminum is only a little more expensive and my gut tells me might be preferable (less maintenance, durability, etc.) but that is only a guess. Sales people are, for the most part, clueless.
I would appreciate any feedback from those who have any experience or knowledge on the merits or pitfalls of either style roof.
- Thanks
I plan to divide my time between Florida and Colorado (mountains 8,000 to 10,000 ft.). While I will do some hauling/traveling between both places, the CT will be mostly used as living quarters (will be well insulated with polyiso).
I am trying to decide between the "seamless one-piece aluminum" or the galvalume (standard?) roof. I have searched this and other forums/google but have not been able to find anything definitive or a discussion of the pros & cons of either. The one-piece aluminum is only a little more expensive and my gut tells me might be preferable (less maintenance, durability, etc.) but that is only a guess. Sales people are, for the most part, clueless.
I would appreciate any feedback from those who have any experience or knowledge on the merits or pitfalls of either style roof.
- Thanks