Yes, I agree Tony Banks is the foundation of Genesis. The Lamb album was played in concert and, while sonically interesting, did not prove a good fit for live performance and led to disagreements especially between Gabriel and Banks. Genesis looked for a singer after Gabriel left and they settled on Phil, who some say sounded more like Peter than Peter. Phil's stage presence, however, was more straight forward than Peter's, but whose wouldn't be with all those animal costumes, etc. Steve Hackett left after his disappointment from the adoption of few of his contributions - George Harrison comes to mind. Nonetheless, when one hears Trick or Wind or for that matter Then There Were Three, one realizes where the core of Genesis lies.
Favorite Genesis Tracks?
I have been enjoying Genesis of late, especially the mid-70's efforts. I must say, my current favorite tracks are Blood on the Rooftops, One for the Vine, Mad Man Moon, Many Too Many, and doubtless Ripples. If in the mood to push the volume, Los Endos is a fine cut. Who else enjoys them?