This is a topic I particularly like, I could name lots of matches that I see as "one of the greatest", but I´ll just stick to the ones I consider most important, but, even so, it´s very very difficult to pick them out
Paul Hunter vs Ken Doherty Worlds semi 2003 : that was one hell of a comeback from doherty there, and the quality was very good in that match RIP Paul, we´ll always love you.
Ronnie O´Sullivan vs Stephen Hendry 1997 Liverpool Charity Challenge final: from 8-2 down, an seemingly having lost the match, Ronnie pulled a great comeback to level at 8 each, only for Hendry, who hardly had potted a ball for at least an hour, pull out a 147 in the deciding frame, truly amazing.
Ronnie O´Sullivan vs John Higgins 2006 Masters final: a match that had everything, great quality from both players, tension, drama, some good breaks, and, in the end, that wonderful clearance from John we all know, in the decider
Steve Davis vs Dennis Taylor 1985 Worlds final: I think all has been said about this final, truly one, if not, the most amazing match in snooker history
Stephen Hendry vs Mike Hallet 1991 Masters final: Again, one of the ost amazing comebacks in snooker history, this time from Stephen, having been trailing Hallet 8-2 at one point.
Alex Higgins vs Jimmy White 1982 Worlds semi: One of the most amazing matches in snooker history, this one had truly amazing pots, two great characters who weren´t afaraid to go for their shots and played at a very fast pace, which also had one of the most amazing breaks ever done in the game, that 69 clearance from Alex trailing 15 frames to 14
Stephen Hendry vs Jimmy White 1994 World final: Also ending in the decider, Hendry won that amazing match, maybe not for Jimmy though, who would make his last appearance at a final, his 6 th overall, coincidently in his birthday. Still, it was one hell of a match, good quality from both players, nerves and tension as usual in situations like this.
Well, I could go on fovever, and I know I´ve missed here some other great matches that I could name, but these are just a few that I consider the "greatest matches" this sport has to offer.