Mostly guys get famous developing their own style, and or writing their own stuff or being with guys that do. Guys generally don't get famous doing covers sounding like someone else.
Some people on here were bashing Brian May. Now you can say what you want, but Brian May sounds like Brian May.
Whether a musician is technically better than another, really makes no difference if they do not have their own style.
I like what Duke Ellington said when asked about all the new jazz, and how to tell if it was good. He looked a bit puzzled and said: "If it sounds good, it is good."
My dad was full time for over ten years and played great. No one ever heard of him.