Best? Microtech, Benchmade and Spyderco.
Worst? COLD STEEL! Not because of the pattern so much. Because not only can you not resparpen them, Cold Steel can't even resharpen them. So you are left with a dull ass knife for the rest of your life. And to make matters even worse I pitty the poor bastard who buys the all serrated version as the knife becomes FUBAR when the serrations where down. You then have a useless knife.
They are the most consistantly hair poppin razor sharp knives out of the box though.