I completely agree about copper and brass being better than aluminum.
Which was why I refused to get a plastic/aluminum for my fury back when it needed a radiator due to being clogged gged beyond hope. Besides the plastic /aluminum looking so much out of place.
These applications that I am needing radiators for, never had a copper/ brass alternative available for them so both efficiency wise and durability wise all aluminum (tanks and all) would certainly be better than aluminum/plastic radiators.