Hamilton's championships are very dependent on driving the best cars on the grid. Don't get me wrong, he's not gifted the best cars - he's an exceptional driver and has worked hard over his career to get the drives in those cars but it's just not all about him. The team & car have a part to play - this season highlights this very well.
O'Sullivan has no such advantages - his cue isn't 'the best in the tournament' - it's just man v man. I'd say another reason O'Sillivan's achievements are lauded more is his overall record - he's been dominant for years 20+ years and is a joy to watch.
Both deserve respect. But both are behind the best sportsman in the world... Phil The Power Taylor, who has a truly unrivalled record of any sportsman in any sport