Despite being able to choose 16, I went with six.
Jimmy White 10 - 4 Stephen Hendry - 1998
Stephen Hendry arrives at the Crucible Theatre knowing that for the first time in four years, his World Number One spot is up for grabs despite runs to the Finals of the British Open (shortly before the World Championship) and the UK Championship) and a title in Thailand. For Hendry, a win in his First Round match will ensure that he retains the number 1 spot for a ninth successive year. Did pulling arguably one of the two toughest draws from the qualifiers put the pressure on more.
Despite not being a close encounter this makes it I feel on the basis one of the nostalgia between the two, this is White's first ranking win over Hendry since the 1991 UK Championship Semi-Final at Preston and comes a decade after his previous win over the then six-times World Champion.
After so many near misses at the Crucible because of his opponent, White hits the ground running, a century in the first frame, pinching the second frame with contributions of 31 and 39 in response to a 67 from Hendry. Six more contributions over 30 in the four frames either side of the interval sees the Englishman lead 6-0 on his way to an 8-1 overnight lead and a Crucible stunned.
On the following evening, despite breaks of 72, and 76 from the defending champion to reduce the gap to four frames, White crucially takes the last before the interval to go one away from a famous victory which arrives in the following frame.
I'll add the others later - Stats courtesy of the Crucible Almanac and CueTracker