Guitar solos are already back in style.? In fact if you listen to black/death metal it's hard to find many songs without guitar solos.
The problem is there aren't many good solos going around.
BTW I think Slash's best solo in Contraband comes in Loving the Alien.? The solos in Do It For The Kids rocks too.
You Got No Right had the most melodic solo.
I think TWAT is a huge song with a Pink Floyd magnitude outro.
TWAT outro is one of the best musical moments in GN'R history, no doubt about it.
And no... I'm not forgeting the past.