If you could only pick one of the two, would you rather have your fave perform at the Super Bowl or win a Grammy ? Which one is the hardest to reach and is more about the "talent" ?
Winning a Grammy is better because it is meaningful.
The other one is just promoting your songs in a big event.
Two weeks after that no one talks about you anymore but your Grammy's will stay with you forever.
When other people talk about artists they would rather ask if they have Grammy's and not 'did he/she perform at the Superbowl?'.
Super Bowl. Getting to perform your songs in front of 100m+ people must be such a great and exhilarating feeling, something a shiny, hard piece of plastic will never give you.
Only one person headlines the Super Bowl every year but dozens of people win Grammys ever year. Gonna have to go with the Super Bowl. Its just more rare and special