Doctor Who - The Legend of Ruby Sunday/Empire of Death

 Here's my comparison of each Doctor's eighth stories:

1) The Empty Child by Steven Moffat
2) The Satan Pit by Matt Jones
3) The Tomb of the Cybermen by Kit Pedler and Gerry Davis
4) Pyramids of Mars by Stephen Harris (Pseudonym of Robert Holmes and Lewis Greifer)
5) Mummy on the Orient Express by Jamie Mathieson
6) Vincent and the Doctor by Richard Curtis

7) The Witchfinders by Joy Wilkinson

8) The Reign of Terror by Dennis Spooner

9) The Mysterious Planet by Robert Holmes 

10) The Legend of Ruby Sunday by Russell T. Davies

11) Arc of Infinity by Johnny Byrne

12) Colony in Space by Malcolm Hulke
13) The Greatest Show in the Galaxy by Stephen Wyatt