Both are useless.
I'm waiting for everyone else in the universe to realize that jobs should not be given to people based on a piece of paper or an interview where salesmanship wins the day.
If I was to hire someone, I'd bring them in and give them a series of tests and see how they do unprepared. I'd give them a short-form IQ test, various clinical essays, and an interview, too...but with incredibly unconventional questions.
Then after that vetting process, look into their past accomplishments like resumes and CVs.
Kind of like how you have to "prove it" with your SAT/PCAT/MCAT/Naplex...there needs to be a standardized test type of situation in hiring.
HR wouldn't let you do that, though. They are all about playing the game. Which, naturally, allows the best candidate to be overlooked a ton thanks to the bull****ting abilities of people. Which is, again, why HR departments have way too much power and are, in general, useless.