Lovely write up, sir. And although this might be my second least favourite Zep album, Presence certainly isn't my least fave and the idea of replacing "No Quarter", get out of here.
I'm back with you on the Blues thing, to a point. IIRC, you were not big on In My Time of Dying, whilst that probably makes my LZ top 10. I find "Since..." to be a great example of a type of song that is not one of my favoured styles and it has enough about it to keep the scores high on the doors.
I must revisit the wonderful "Almost Famous", which I saw at the cinema on release and may even have on DVD: I don't remember "Tangerine" but I considered it a special song long before the movie. “That’s The Way” has snuck up on me over the years; as has much of the acoustic stuff. When I first bought the album, I was much more interested in the heavy stuff but I've softened with age, in more ways than one, and although it is still rockier stuff that I love most (from any band), my fondness for this album has grown considerably with time.