I like Led Zeppelin a lot, but they aren't my favourite band. They might crack my top 10 though, which is pretty impressive. I am a fan of later Led Zeppelin stuff kind of, my favourite albums being Physical Graffiti and Houses of the Holy, though III is right up there too. I don't think of them based on individual songs, because they tried at all costs to avoid releasing singles, so the albums are really what they should be judged by in my opinion. But yeah, in short, they freaking rock. Bonham is amazing.