Yeah i was thinking the same thing, if you are going into history Moorcrofts would have to be up there I was that that game, (took it right in front of the pocket i was sitting in), but then you look at some of the marks Gary Ablett Sr took. Almost every big name full forward took a great mark in thier day.
Its near impossible to rate the best mark ever. There has been hundreds of them. But these days i guess they are harder to come by so more memoriable when you do happen.