uPVC windows vs aluminium windows — which is the better long-term choice for a Suffolk home?

I’m in the middle of trying to sort out new windows for my little old place in Suffolk, and my brain is honestly melting from all the opinions out there. Some people swear by uPVC because it’s cheap and low‑maintenance, others keep telling me aluminium is the “grown‑up” choice and will last forever. I’m right by the coast, so salt air is a thing, and I really don’t want to make a pricey mistake I’ll regret in a few years