What’s the best chef’s knife in the world?

Wondering if anyone has tried the Shun Ken Onion 10" Chef knife. Some have said that this is the cadillac of knifes. I'm thinking about purchasing one but the handle looks a lot different than your standard chef knife. Any thoughts? Anyone compared it to a Wosthof or Hecknels? Also any opinions on a 10" blade vs 8". Some have said that bigger is better. Thanks