Well this should be easy. Paul McGann, the Doctor for one night only. What's his best story then?
Well, I could cheat and consider media other than TV, in which case I'd go for the animated version of the Douglas Adams story Shada that he voiced.
But no, I'll have to play fair and nominate the story known only as Doctor Who The TV Movie. This was an attempt to revive the series by setting it in the USA, something it notably failed to do.
Eric Roberts makes a passable villain, although he's clearly not The Master, and Daphne Ashbrook makes a passable companion.
certainly been worse stories on US television, but is it Doctor Who?
Only just. Yes there's a blue box, but where is the multi-layered plot,
the monsters who turn out to have hearts of gold, the moral dilemmas etc
But enough of the plot, what about McGann? Well,
before I answer that lest have a quick recap of the debut stories of
the various Doctors. William Hartnell was of course perfect from the
word go, Patrick Troughton's first outing is, alas, lost forever whilst
Jon Pertwee spent most of his first story out cold in a hospital bed.
Tom Baker left us for a while in the TARDIS leaving Sarah Jane to carry
the story whilst Peter Davidson spent most of his debut in a box. The
less said about the intial appearances of Colin Baker and Sylvester
McCoy the better.
So you'd have to say McGann's debut
performance was probably the best since The First Doctor's thirty three
years earlier. He was The Doctor straight out of the box. Debonair and
romantic, he could have been the best of Doctor Who. Instead he will
remain a one hit wonder.