I thought...both of them were the weak links in both trilogy's casts. That being said, Mark Hamill WAS still a much better actor than Hayden could ever be. Especially around Return of the Jedi. I think Mark was finally getting good there.........and then his career pooed.
Thank god for B:TAS and the Joker. .....And Cock-Knocker.
But seriously, compared to Ewan McGregor, Harrison Ford, James Earl Jones (even just his voice), Temuera Morrison, Ian McDiarmid, and Christopher Lee, Hamill and Hayden are kind of blown out of the water...