Are solo efforts ever better?

I’m sure someone will think of something, but IMO, I can’t think of any artist that went solo and produced a significant amount of material that was “better” musically than what they did with their bands. Paul Simon did some decent stuff, but I don’t think it ever reached the artistic levels of what S&G did together.  Sting, Fogarty, Bruce…  I guess Diana Ross and Beyoncé were far more successful solo, but I think the Supremes and Destiny were more of window dressing for the star and less of a collective effort. Again, IMO. What do you think?