I can get one of these names for sale

"Cook" and "Cooking".

But I don't kno wich one is the rarest. Any opinions?

 

Both rare, I'd buy either if you want to sell cheap

 

If you'd have to choose between them, Cook.
But rare wise, I'd say both, because Cooking is a skill.
And something you do IRL.

 

Cook is pretty cool its 4 letters and means something.

id take Cook over Cooking

 

Yeh, though Cooking is a name of a skill, cook is cool, and less letters.