This is like asking what's the best rifle cartridge or what's the best truck. You're gonna get lots of different answers, and maybe a few arguments.
Personally, I love the Lansky sharpeners. You can get stone or diamond. The stone set is half as much.
https://www.amazon.com/Lansky-4-Sto...sharpener&qid=1675279326&sr=8-12One that I would love to get is the Wicked Edge. Same concept as the Lansky, but beefier. I just haven't wanted it bad enough to plop down $400 yet.