Wow, this is chock full of inaccuracies. Mike Tyson most certainly did quit against Holyfield 2, though to his credit it was the only time he did that. Mike proved his heart in taking awful beatings against Douglas, Holy I, and Lewis and kept coming. The only fighters Mike fought on Liston's level were Holyfield and Lewis and...well, gee he didn't do very good. Some would bring up a five-years-past-his-prime, two year ring rusty, just-turned grandfather Larry Holmes, but even Mike himself admitted he didn't fight the Great Holmes. Guys like Berbick, Williams, Biggs, Selden, Bruno, etc. would have been murdered by Liston. Floyd Patterson was indeed a more than good fighter: a two-time undisputed heavyweight champion. Sorry, son, but your argument here sounds like somebody whose knowledge of boxing begins and ends with Mike Tyson...and even that isn't exactly objective. Mike was a terrific fighter in the 80s, and probably a top 10 ATG. But the guy you're describing is somebody else.