Geez...I love to get the Led out, I really do--but The Beatles are the top dog, always. I'm not saying that Led Zepplin is not F'ing Great, 'cuz they are--Pink Floyd, The Doors, The Stones, C, S, N & Y (especially Y), etc., etc., they're all insanely great bands...but the Beatles are in a different realm. In less than 1 decade, they created just about every genre of rock there is. They are the foundation on which rock is built. That's just the way it is.
Yeah, they're all great but AC/DC are the best. Why's their name not up there?? What a travesty.
How can you pick from the stars above? Gotta have 'em all, love 'em all; even if only one or two of their songs, they've all made top charts!