About 4-5 years ago, I "discovered" that there was a Genesis beyond their late 80's/early 90's pop-radio hits, and promptly bought The Lamb Lies Down On Broadway. As a blossoming progger, I was compelled to dive right into their most ambitious, and perhaps most contentious album, and I was floored by it's 90+ minutes! It was a musical journey unlike any I had ever experienced, and it ranks in my Top 20 albums of all time (at least 25, lol).
After that, I worked backwards and got the rest of the Gabriel-Era Genesis, and of the remaining albums, Trespass to SEBTP, the latter two are my favorites over the former, although Trespass has some GREAT moments on it, and I love listening to the whole thing, just knowing those boys were so young making such good music!
I also highly enjoy ATOTT to Duke, and that run of four albums is great in it's own right in the way that Trespass to SEBTP is in it's own way. Of that bit of albums, Wind And Wuthering is probably my favorite, then A Trick, tied with Duke, and lastly ATTW3, which took me a LONG time to get into, but after a couple years, I finally found some great songs and enjoyable moments on that album.
Of course, from Abacab to We Can't Dance, they have their radio hits, which are great songs, but their output in general waned for me, but I love their longer songs ("Home By The Sea/Second Home By The Sea", "Domino", "Driving The Last Spike", and most especially "Fading Lights"). Of these albums, I would definitely pick We Can't Dance over the other three.
It's hard to go on knowing a reunion beyond the 3-man group is unlikely, but at least those three came together for one more tour... unlike Yes who continue touring without Jon Anderson, causing more controversy than a lack of a 5-man Genesis tour, putting the future of Yes into some sort of limbo where no one's sure if they'll record again. As for Genesis, I think it's likely they won't record again, but I'm fine with that. They haven't put an album out in over 12 years, so I've come to accept those chances are really slim-to-none. They had a great run, and I love pretty much all of it! Now they are all "free to get back home".
-Marc.