12 days 'til 'The Day of the Doctor' and we've reached our penultimate entry - just missing out on the top spot is a Steven Moffat-penned favourite, beloved by fans and critics alike...
2. BLINK (2007) - written by Steven Moffat
"Don't turn your back. Don't look away. And don't blink."
Steven Moffat once remarked that you know you've got a great concept for a Doctor Who story when you think, 'Well, there goes that film idea…'
One of Moffat's greatest ever was 'Blink' - first aired in 2007 and held in high esteem by both Whovians and non-fans ever since, it's a bloody fantastic supernatural horror masquerading as a Doctor Who episode.
Shot simultaneously with another episode, 'Blink' is what's known in fan circles as a 'Doctor-lite' episode, with David Tennant's contribution - and that of companion actress Freema Agyeman - comparatively minor.
It'd be easy to argue that, without the Doctor, Doctor Who simply doesn't work. Consider 2006's 'Love & Monsters' - bold, but ultimately a failed experiment. But Moffat's script for 'Blink' makes an asset of the Doctor's absence - returning the show to its roots, he casts ordinary people as our heroes and the Doctor as magical, mysterious outsider.
Of course, such a dynamic only works if said 'ordinary people' have star quality - back in 1963, Doctor Who sailed to success as much thanks to William Russell and Jacqueline Hill as to William Hartnell, and 44 years later, it had Carey Mulligan.
As 'Blink' heroine Sally Sparrow, Mulligan is immediately funny, sweet and endearing - the fact that, in the intervening six years, she's appeared opposite the likes of Leonardo DiCaprio and Ryan Gosling in a string of Hollywood hits speaks volumes about her talent.
Like any great Doctor Who story though, 'Blink' assembles a superb supporting cast around its lead - much has been made of Mulligan's turn, but just as good is Finlay Robertson as Larry Nightingale, the closest Doctor Who has come to portraying a Doctor Who fan on screen.
Even smaller supporting roles are ably filled - the charming Michael Obiora and soulful Louis Mahoney both impress as two versions of copper Billy Shipton, separated by 38 years.
But let's get back to what makes 'Blink' truly great - a phenomenal concept and the introduction of the most original and memorable Who monsters since the Cybermen's debut in 1966.
The genius of the Weeping Angels is two-fold - first, there's their unconventional method of dispatching their victims, a neat invention that was regrettably neglected a little in later appearances. Second is an attribute that made Moffat's monsters stick in the minds of many a viewer - the Weeping Angels cannot move so long as you keep your gaze fixed upon them, but if it wavers, even for a second, they have you...
It's the sort of brilliant idea that you can't believe hasn't been employed in popular horror before now - the equivalent of Paul McCartney dreaming up 'Yesterday' in the early '60s and refusing to believe that someone hadn't already written that tune...
If 2010's two-part sequel 'The Time of Angels' / 'Flesh and Stone' was 'Aliens' - a few new twists, more action and on a grander scale - then 'Blink' is the superior 'Alien' - more intimate, more claustrophobic and far, far scarier.
'Blink' culminates with a series of clever twists - the manner of the Angels' defeat is simple but smart - and, best of all, includes a plot-irrelevant final sequence designed solely to terrify children, as every single statue in the world is cast as a potential angel...
There's just something very special about 'Blink' - it not only won over Doctor Who's notoriously difficult-to-please fan-base, but also captured the public's imagination in a way that arguably no other episode has done since.
The image of a petrified Sally and Larry staring in boggle-eyed terror at the Weeping Angels has become as fixed, as iconic, as the notion of hiding behind the sofa from the Daleks.
'Blink' is not only everything that a great Doctor Who episode should be - funny and scary, accessible to newbies but with plenty of nods to fans - but it also proved that a show almost 5 decades old still had the potential to produce wonderful new ideas that could penetrate the nation's consciousness.
Quite the eye-opener.
Are you a fan of 'Blink'? Does it deserve such a high spot in our Doctor Who top 10? Share your thoughts below!