There are so many ways to accomplish the end result, it is difficult to say which is "best." When I started out I bought one each of pretty much every set I could find.
Hightower's videos showcase cuebuilding on one of his lathes. His books discusses more ways to accomplish the various cuebuilding tasks.
Barringer's video series highlight a variety of methods, may of which are different from Hightower's. His videos center around larger lathes and machinery.
Unique's cue repair and cuebuilding videos highlight their machinery and don't delve into much beyond that. Their series is worthwhile, however.
Brianna had a series of videos that centered around Porper's machinery. I know there are some Porper lathe videos, but I have not seen them.
DZ highlights a variety of methods that he uses very effectively on his equipment.
Dennis Dieckman had several series that preceded them all. He did not use any cuebuilding lathes, and merely adapted heavier machinery.
Much of this depends on your equipment. My point is, the different videos show many different avenues to get to the same end result. For instance, they show cutting point grooves on lathes and mills. They show squaring point stock on jointers, edge sanders, drum sanders, planers and cnc mills. They show the wrapped-around (stacked) method and the mitered method of veneers, etc.
I don't agree with all the methods, but it is eye opening to see what is out there.
No matter what you choose, setting up the equipment is key. Most machines just don't come shipped with the kind of accuracy one needs; you've got to spend the time to dial them in.
Best of luck,
Beau