The Iron Lotus video footage from North Korea was pretty great.
I think this works, moreso than other Ferrell offerings, because he's allowed to be a goofball jerk and work off a straight man (Heder). In Anchorman, he's oddly the most normal of his troupe and John C. Reilly is definitely not a straight man in Talladega Nights. A lot of the humor in Blades of Glory is predictable, but it's also the first time that Ferrell is allowed to pretty much run away unchecked since the humor comes with him bouncing off the super-girly, straight man Heder and psycopathic Will Arnett.