[shilala]

Super difficult decision. I had to go with II only because there's not a single song on that album that I didn't love from the very first time I listened to it.
My absolute favorites Zep song is Hey, Hey, What Can I Do. When I was just a little booger I had a heck of a time rounding up that song because it was only on the flip side of the Black Dog .45. I had to special order it from National Record Mart at the mall and waited the standard 6 to 8 weeks.
Weird thing, I looked at Wikipedia and they say it was released on the B side of the Immigrant Song. I'm absolutely certain mine had Black Dog on the A side. It must have been a second market thing, this was around 1980. I actually found out how to find it from a music encyclopedia I had, I had never heard the song and it was the last piece I needed in my collection till Coda came out later, which I thought was a HUGE disappointment at the time. Later I understood it for what it was and enjoyed it, but it's still the least favorite album for me right up till today.
I would have picked Physical Graffiti because I gave it the most play time along the way, but I wore it out. What an incredible album it was.