At this point in time(without having played the original) I don't know if there is a difinative RE3, with one being locked to older systems and the other one seemly cutting content.

This kind of makes me wish along with the remakes Capcom just ports over the older versions of the first three games(including RE1 classic/DirCut and RE2 N64 as options), in a style similar to the Origins Collection for fans to have a more modern way to play them if they want something other than just the remakes.