whats worst?

[UnderControl-]

Both can have extreme effects on you and your life.
Mike Tyson - Marvis Frazier, 1st round, Frazier looked dead.
Samuel Peter - Jeremy Williams, second round, Williams almost died.
Vitali Klitschko - Danny Williams, 8 round beating, Williams undefeated since then.
It depends on who you are and how extreme the damage is that occured.

[antihero]

Long beating is worse. A KO can be like boom and you're on the floor wondering what's happened.

[UnderControl-]

Long beating is worse. A KO can be like boom and you're on the floor wondering what's happened.

In most cases this is correct, but please compare Klitschko-Williams and Peter-Williams. There always are exceptions. But usually, in most cases, you are correct.

[-Antonio-]

I think the thing with roy jones was more mental than physical. Hes losing his skills because of age not because of the two knockouts IMO.