I’d opt for someone like a younger Adrian Paul to have played Anakin back then. Some who had that believable presence that they could be the OT Vader embodied by David Prowse and JEJ’s voice. Someone with the physique, acting chops, and has that dark brooding / dual menace about him. For me Hayden never had that, I never believed the guy could be OT Vader (that’s not necessarily Hayden’s fault; as that is more on the casting, writing and direction).
This recent thread was an enjoyable read: What if the Prequels were made in the 80s?
from the guy who does the excellent Trash Compactor podcast: www.trashcompod.com & www.youtube.com/@trashcompod