Since everyone is going into more detail, and insomnia is kicking in I'll post mine more list-like
MY FAVOURITE EPISODES (in order)
01 -
The Parting of the Ways by Russell T Davies (Series 1)
02 -
The Stolen Earth by Russell T Davies (Series 4)
03 -
A Christmas Carol by Steven Moffat (Series 6)
04 -
The Doctor's Wife by Neil Gaiman (Series 6)
05 -
Asylum of the Daleks by Steven Moffat (Series 7)
06 -
The Unquiet Dead by Mark Gatiss (Series 1)
07 -
The Empty Child by Steven Moffat (Series 1)
08 -
The Girl Who Waited by Tom McRae (Series 6)
09 -
Lets Kill Hitler by Steven Moffat (Series 6)
10 -
Dalek by Robert Shearman (Series 1)
11 -
Tooth and Claw by Russell T Davies (Series 2)
12 -
The Satan Pit by Matt Jones (Series 2)
13 -
The God Complex by Toby Whithouse (Series 6)
14 -
Vincent and the Doctor by Richard Curtis (Series 5)
15 -
The Doctor Dances by Steven Moffat (Series 1)
16 -
Planet of the Ood by Keith Temple (Series 4)
17 -
Midnight by Russell T Davies (Series 4)
18 -
The Beast Below by Steven Moffat (Series 5)
19 -
The Unicorn and the Wasp by Gareth Roberts (Series 4)
20 -
The Rings of Akhaten by Neil Cross (Series 7)
Narrowly missing the endless list:
Doomsday, School Reunion, Gridlock (knocked out by 'Akhaten), 42, Blink, The Lodger, A Town Called Mercy, The Angels Take Manhattan
MY LEAST FAVOURITE EPISODES (in ascending order)
*this isn't to say I didn't enjoy watching some of these though my enjoyment inevitably went down the closer to No.1...
20 -
Love and Monsters by Russell T Davies (Series 2)
19 -
The Wedding of River Song by Steven Moffat (Series 6)
18 -
The Rebel Flesh by Matthew Graham (Series 6)
17 -
The Almost People by Matthew Graham (Series 6)
16 -
The Long Game by Russell T Davies (Series 1)
15 -
The End of Time: Part Two by Russell T Davies (The Specials)
14 -
Voyage of the Damned by Russell T Davies (Series 4)
13 -
Closing Time by Gareth Roberts (Series 6)
12 -
The Bells of Saint John by Steven Moffat (Series 7)
11 -
The Doctor's Daughter by Stephen Greenhorn (Series 4)
10 -
Cold Blood by Chris Chibnall (Series 5)
09 -
The Power of Three by Chris Chibnall (Series 7)
08 -
The Hungry Earth by Chris Chibnall (Series 5)
07 -
The Lazarus Experiment by Stephen Greenhorn (Series 3)
06 -
A Good Man Goes To War by Steven Moffat (Series 6)
05 -
Dinosaurs on a Spaceship by Chris Chibnall (Series 7)
04 -
Fear Her by Matthew Graham (Series 2)
03 -
The Next Doctor by Russell T Davies (The Specials)
02 -
The End of Time: Part One by Russell T Davies (The Specials)
01 -
The Doctor, The Widow and the Wardrobe by Steven Moffat (Series 7)
MY RTD/MOFFAT RATINGS... just for funsies
RTD gets 4 episodes in my top 20, including the top two spots. Steven Moffat gets 6 of my top 20.
Moffat gets 4 episodes in my bottom 20, including the lowest allocation. RTD gets 6 episodes of my bottom 20. (By comparison, Chris Chibnall also fared badly, with 4 of his 5 episodes being in my lowest 10).
Those stats sound pretty even, so I shall go on loving both showrunners as per the norm, and getting ridiculously and overly frustrated on the occasions they produce an episode that isn't quite to my liking