I love the sound of using two or more amps but the phase issues, stage space, setup time, etc. - just make it impractical for me. I did it for over two decades.
As others have mentioned the Marshall is the key. Mixing that with whatever other amp.
So did Adam. The rest of the band preferred the sound of the VH4 in the band mix.
About the time the Gibson endorsement happened we started seeing the Mesa amps again more often.
James Hetfeild biggest influence was Ted Nugent. Ted Nugent biggest influence was June Carter Cash.
There is a lot of similarities in how they use the pick hand.
i could careless about anyone's political or religious views. Those are all man made constructs.
Ted has definitely had a effect on how I play the guitar. Especially in the early parts of my development.
The Cat Scratch Fever riff is something most of learned about the same time as Smoke on...