Think of the smartest person you have personally met. You must have met them in person and actually communicated with them. Anyone who fits these two requirements should be considered. Who are they? What do you think they're like to be around?
Now think of the most successfully artistic person you have personally met. You must have met them in person and actually communicated with them. Anyone who fits these two requirements should be considered. Who are they? What do you think they're like to be around?
If this is the same person for both categories then decide if that person is more successful or smarter. What suits them more? Whichever you choose consider your second choice for the other category.
How you interpret being smart or being successful is up to you. So is what should be considered artistic.
Consider a world where one of these people becomes your friend while the other will never see you again. Who do you want to be your friend in this world?