Probably the greatest ever poker player.
I think players like phil ivery and daniel negraneu have played poker for so long and they have so much experience, they almost develop a 6th sense when it comes to reading people. simply amazing.
I think jackson's mistake was not pushing all in on his second reraise. if he was strong that's what he would have done, but instead he was weak and he wanted to leave himself chips if his move didnt work. ivey read right through it.
It makes me mad to see all these rediculous lists of the "best poker players". There are so many variations and games within poker. Some players are amazing at mtt's and not too good at cash games (Matusow, maybe even Hellmuth). Dwan makes more money of PLO than NLHE which nobody seems to realize, and really hasnt done well in the live mtt scene, cash games (at least internet he's one of the best in the world). With that said though I would agree that Ivey is the best well rounded player.