Ah, memories!
My absolute favorite Zep tune's the final cut on the first album, "How Many More Times". This cut was incredible! Man, when I was a teen, I used to put my earphones on and BLAST that song until it reverberated throughout my entire being.
In my basement, I have a vinyl original Epic copy of the Yardbirds' last album, "Little Games", bought unopened at a record store on Bleecker Street in the Village over two decades ago. The album was kinda poor compared to previous Yardbird efforts, but Jimmy Page's guitar work is very much a curio. The Page signature is very much in evidence. If you see the album, what the hell, pick it up!
I think the best Zep album, pound for pound, would be "Physical Graffiti". I think they peaked. "Presence" would be classifed a nadir. "In Through The Out Door", I think, might've been their last album for many a day if John Bonham hadn't died...there'd be a reunion album in the mid nineties or so.
Just fantasies zooming through my head, of course...😛