Finally finished Series 1 (first Hartnell) yesterday. Took us about 6 months to get through them. It's been about 5 years since I've watched them and my wife (who likes the new stuff) wanted to watch them. I said I didn't think she'd get through more than a couple of episodes but she watched them all, even the recons.
An Unearthly Child: I love the first episode, probably my most watched episode of all Who. Its alive!, indeed it is. The other 3 episodes aren't too exciting, the caveman stuff can be pretty painful to watch.
7/10
The Daleks: Good, but overlong. Really should be a couple of episodes shorter, starts to drag in the middle especially when they realise they've left the fluid link in the city. I like the freaked out Dalek "ahhhhh. ahhhhhh. ahhhhhhh".
7
The Edge of Destruction: Surreal but hastily written. The Doctor's speech is the highlight here. At 13:11
here.
5
Marco Polo: What a shame nothing exists of this serial, but we have every episode of the Web Planet. Tough to get through with the recons but it's a good tale.
7
Keys of Marinus: C'mon Moffat, the Voords deserve a second chance.
6
The Aztecs: 6
The Sensorites: I can see what they're trying here, it's a little creepy
but it's sooooooo dull.
2
The Reign of Terror: The usual historical: land, get captured, escape, get captured again, escape, leave.
4
Average: 5.5
Series 5 (2010) 7.2
Series 1 (2005) 6.3
Series 4 (2008) 5.818
Series 3 (2007) 5.545
Series 1 (1963) 5.5
Series 2 (2006) 5.455
Specials (2009) 5.25