I should also add that you'll be asked what brand you want, except of course at Woodmizer.
That is one of those person preferences, like Stihl vs. Husky vs. Jonsered.
I like Simmonds Red Steak, they give me the best performance for the maximum blade life.
I also like Munksforsagers, they are the only blade that cuts well right out of the box without the need to presharpen, but they break after just a few resharpenings.
Lennox are OK but don't last any longer than Munkeys.
Never used a Woodmizer blade.
Of course, your mileage may vary.