The best Peter Gabriel Genesis recordings are the redbook CDs released by Virgin Charisma 1985 -
Tresspass CASCD 1020
Nursery Cryme CASCD 1052
Foxtrot CASCD 1058
Selling England CASCD 1074
Lamb Lies Down CGSCD1
They were available as two box sets with picture discs...
Steve Hackett's Genesis Revisited, Genesis Revisited II and the live version are all worthwhile.
The Japanese SACDs will be the same source as the above.
The box set 1970-1975 is interesting because of the different mixes. Maybe controversial, but still well worth a listen and worthwhile for the 5.1 versions (only available lossless on SACD)
24/96 isn't going to make anything sound better
I have the Live At Hammersmith version and I am very impressed with the audio quality of that. I would also but Live at the Royal Albert Hall if it wasn't for one big problem. The bass on it is far to heavy. I have listened to it through Spotify Premium and the X3's DAC. Even with the bass on the X3 turns right down, it doesn't sound right. Quite a few people think the same and that it is just the way the CD's were mixed and that it didn't sound like that for real.
The Steve Hackett album I got was this:
I can't think of much better sound while on the go than the X3 with my K550s and a 24bit recording. It sounds great. I think there may well be better sounding portable headphones at around the price of my K550s now though.