Do you think the Beatles are overrated?

It's become almost cliche to put them at the top of a "greatest songs of all time" list...I'm a fan but I think they really only expanded on the pop-rock of the time, and didn't make any innovations. I'm getting a little bored with seeing them at the top of every single greatest artists/songs list. There are other artists who were better entertainers and songwriters and vocalists then the Beatles. What is your opinion?