They don’t have to be the “best” yo-yos, they can be iconic or influential, played a part in a lot of people’s love for the hobby etc.
(for this discussion let’s say only throws from the last 10 years)
So which four is on your list, and why?
I think mine might be:
Draupnir (set the standard for high performance, showed what amazing quality and precision can do to elevate a simple toy, unquestionably one of the best performing yo-yos ever)
YoyoJam Classic (was the intro for thousands of throwers, used a simple and basic design to achieve great results)
Shutter (one of the best all-around yo-yos ever made, is the flagship for arguably the most important and influential company of the past 10 years)
MarkMont Classic (not only the epitome of organic design, but the standard bearer for the beauty and creativity that has been the hallmark of North American YoYo design)