Agree with this. I've seen Metallica many times and they always put on a good show. Vs some bands like GNR who used to essentially phone it in. That one GNR/Metallica/Motorhead show, GNR was the worst of the three and the main headliner. Axl seemed to be more focused on his multiple wardrobe changes during the concert which left many scratching their heads.
You can tell Metallica enjoys performing. James talking to the crowd between songs and just the energy they give off. Took my wife to one of their shows a few years ago. She doesn't even really like them much, but said they put on a great show. Took her to Kiss and she said that show kind of sucked. Gene Simmons was also phoning it in at that point. More interested in making some money. Saw Kiss in the late 80's (Animalize tour) and they put on a good show back then.
Metallica plays hard, the entire night. They are my #1 when it comes to putting on a concert from those that I've seen. I'd love to go to their concert when they come back but I'm not a fan of the 2 night no repeats show and I'm not wanting to go both nights.
Kiss puts on a show and it was neat to see but their music doesn't do it for me. Rammstein was way better at the show part than either Kiss or Metallica but still Metallica wins for overall quality of concert.