Stu Unger in his time of playing was probably considered one of the best poker players of all time, as well as THE best Texas Hold'em player of all time. I believe in today's game, Phil Ivey is probably the best all around player of all variants of poker, but I will choose to watch Daniel Negreanu play any day of the week just because of the entertainment value that comes with watching him. He is obviously the Hollywood celebrity of poker today, and his skill is easily top 10, if not top 5, of all time. The mini documentary that is on PokerGo about Stu Unger, however, is one of the coolest things to watch just because of how brilliant his mind was.
I vote Chip Reese. Much more emotionally stable than Stuey. I dealt to him several years ago at Bellagio a few times, and he was a very kind and humble man. Just had great energy and it was pleasant to be around him. Just a phenomenal player.