Jacks a great writer but nothing exceptional as a performer. I'd much rather see a great performance of an average tune than great material, even performed adequately, so Glenn will always have an edge over Jack imo.
I enjoy listening to new versions of old songs, as long as I'm aware of the definitive version. There was a time when Eric Clapton's unplugged version of Layla was getting more air play than the Derek and The Dominos classic.
When
Hell Freezes Over came out, probably because it was visual as well as audio, and it was the current release, that album, for a short time, became the home of the Eagles definitive hits. I always preferred the originals, even
Help Me Through The Night and the very fine performance of
The Heart Of The Matter.
The albums had the definitive versions and the definitive versions are what you'd see at an Eagles show. If anything was changed,
it would be through necessity, it wouldn't be to make the performance more interesting for the performers. Maybe that's why they had such a long and illustrious live career.
I love experimentation but it's got to be backed up with a large chunk of focus. IE Joe Walsh -
Turn To Stone recorded 3 times between 1972 and 1975.
On his early vinyl albums, Joe would layer acoustic guitars, deep in the mix, to add power to his production.