I will say that I literally don't listen to any artist for vocals. I listen for the songwriting first. That's why I stan artists that have good/average voices but amazing songs. Regina, Kacey... Katy...
Also why singing reality show contestants are of ZERO interest to me.
You might be born with a nice voice that doesn't need much training but you have to actually practice over and over to be a good songwriter (not saying you don't have to do the same with your voice but sometimes you are just #blessed)