Hah, I was pretty unclear there. They're missing *based on* the list posted above. i.e. they're on the list above and missing from Hulu.
Also, Web of Fear is only missing one episode of six since the Nigerian find.
I agree that the War Machines pacing is much faster, and rather akin to the Pertwee era rather than Hartnell. That and Invasion really paved the way for UNIT Earth based stories. Still, after rewatching War Machines, I thought it was a rather weak serial. Tenth Planet is great, despite Hartnell's illness-related absence.
Pacing aside, I think the first episode, Time Meddler, and Aztecs are my favorite Hartnells at the moment.