There is no right or wrong choice if we do not clear up two factors first:
i) The specifications
ii) Your needs
The specification of the materials that make up a structural element defines the construction method, the conditions of use and ultimately the strength limits. The usual excuse for hardware failure is the easy excuse. Depending on the money you will have, the color you choose, a salesperson will help you choose the synthetic window frames or aluminum pallets that meet your needs.
The next step is to select a professional so you can be sure of the excellent fitting of the frames ... and ask for information on the warranty that will cover you for years to come.