The commentary on the Futurama episode "A Head in the Polls" where Nixon runs for President of Earth is pretty telling about how the writers and actors feel about Nixon. I think those of us who weren't even alive when he was in power will never understand the depth of people's emotions about him -- but look at how some of us feel about Bush, and he's not considered to be on the same level as Nixon.
Billy West's Nixon is simply hilarious.
Aroo!