And how did they attain this? You can say yourself, I for one, after almost 20 years of cooking can at least make myself happy.
But perhaps we also need to define what makes someone the "best cook."
My paternal grandmother definitively does not screw anything up. Each new experiment is a success and her bland, yet vibrant-healthy cooking style is extremely nourishing and yummy.
My mom experiments and gets distracted but she's the only person I know well that can make maki and 5 spiced pork.
I know what I like...so it's hard to screw that one up.