Originally Posted by
krisis
I agree, this material is amongst my most-wanted omnibus books!
I think I've left out a few little mini-things and one-shots (Serve and Protect, for sure), but otherwise this would be a mega-solid collection of the core threads of the period.
New Mutants: Regenesis
(-nfernus #1-4, New Mutants #1-11, 15-21, 25-50, Exiled #1, JITM #637-638. Age of X doesn't really have too much impact on this title compared to Legacy and Carey wrote all of the crossover issues, so it's better there. Plus, X-Infernus is a good prologue and explains why Magik is there)
Uncanny X-Men: Endangered Species (I could also see the argument for splitting this into "Manifest Destiny" vs. "by Matt Fraction")
(UXM #487-491 & 495-512 + Annual 2 + All of Endangered Species (about 6 effective issues) and Messiah Complex (13 issues), plus material from Divided We Stand (2008) #1-2, X-Men: Manifest Destiny (2008) #1-5, FCBD, Nightcrawler #1, Eternals #7-9, Runaways #10)
Uncanny X-Men: Second Coming
(Basically, Utopia (364 pages) + Nation X (360 pages) + Second Coming (392 pages) + Second Coming: Revelations (208 pages) = 1324 pages, which is still a hair under Marvel's biggest omni, and would be a massively satisfying read.)
Uncanny X-Men by Kieron Gillen (let's lean into his hotness with fans at the moment, eh?)
(UXM #526-544, 534.1 & Ann3, UXM #1-20, Heroic Age: X-Men, X-Men: Regenesis, Generation Hope #1-12, Steve Rogers: Super Soldier Annual 1, Namor Annual 1. I'm not sure you could squeeze in AvX: Consequences. You don't actually need Schism to understand what's happening here, especially with the GenHope Schism issues.)
Wolverine by Jason Aaron Vol. 2
(Wolverine (2010) #1-20, 5.1, & 300-304, plus Astonishing Spider-Man & Wolverine #1-6, X-Men: Schism #1-5 (bonus that's not in the complete collections!), and material from Wolverine: Road to Hell)
X-Force by Kyle & Yost
(Just the pair of X-Force OHCs + X-Force Necrosha material; easy)
X-Men by Mike Carey, Vol. 1
(X-Men #188-204 & Annual 1, Secret Invasion: X-Men #1-4, X-Men Legacy #208-225, Wolverine: Origins #28-30, X-Men Original Sin, and maybe material from X-Men: Pixies and Demons - Director's Cut (2008), X-Men: Divided We Stand (2008) #1-2, and X-Men: Manifest Destiny (2008) #1-5. Most X-books break best around Second Coming, but this book has a better break with Rogue gaining control of her powers.)
X-Men by Mike Carey, Vol. 2
(#226-234, 238-260, Giant-Size X-Men Legacy, Age of X: Alpha, New Mutants #22-24, and Age of X: Universe #1-2 - yes, I'd include the pair of Utopia issues and the Necrosha issues, they work fine on their own. We could also pad this with X-Men Origins: Beast (2008), X-Men Origins: Gambit (2009), Wolverine: Firebreak (2008), and X-Men: No More Humans OHC)
X-Men: Regenesis OHC
(X-Club #1-4, Magneto: Not a Hero #1-4, Wolverine and the X-Men: Alpha & Omega #1-5, Generation X #13-17 - you could even include the garbage dump of Prelude to Schism #1-4, if you're feeling malicious, and also Pixie Strikes Back #1-4, Psylocke #1-4, and any other Heroic>AvX era minis or one-shots I'm forgetting just for solid coverage of the period.)