Is one better than the other or do they all operate the same for the most part? If they all operate the same for the most part, would Hazard be the best one because it probably is the easiest to install on one's computer? Atleast, easy for me since I've done it several times. I don't know how to install Retail or iATKOS. And I'm unsure if iATKOS is made for amds at all.