The best songs on MA are maybe his best ever -- Great Big White World, Disassociative, Posthuman, Coma White, etc. -- even a single like The Dope Show is fantastic poppy glammy gloom and nails what the album was going for. The artwork, the blue CD case with the changing booklet, the videos and the live performances were all creative peaks for the band and it's an inspired step in another direction when it would have been so easy to take the ACSS b-sides and pump out a basic follow up to that success. Some of the lyrics are very "teenager writing poetry after breaking up with a girl they dated for 3 weeks" but I think a lot work in that Morrissey sort of way. It was the album that got me into his work and still has his best vocals. He never screamed that well after Antichrist and his more melodic singing became a jangly Jim Morrison knock-off on later albums but Mechanical Animals has this great style and identity that beats out any of his other songs vocally by far.
As much as I like Holy Wood, I've always felt it was a shame that Columbine derailed his career and the band so heavily that we never got an appropriate follow up to the style and sound of MA, and it's the last album that didn't feel deeply influenced by what else was popular at the time (with Holy Wood trying to nail that harder sound again and Golden Age veering into nu metal territory, EMDM trying to get that Hot Topic money and every album since trying to imitate what made the band successful to begin with). There are some parts of MA that are very cringe-worthy but I'd argue Marilyn Manson is inherently cringe-worthy so it's easy to embrace that and have fun with the pseudo-campy melodrama of it all. It still sounds energized, the production has held up wonderfully, they managed to have a more accessible, poppy vibe without losing their transgressive edge and I never could believe that this was how they followed up something like Antichrist Superstar. Not a lot of bands pull off such a bold and massive overhaul without feeling like sell outs and this album nailed it. It's the middle of the best set of albums the band would ever make and the second to last one where it really still sounds like a band and not just hired guns trying to mimic an already set sound and standard -- one of the worst things that ever happened to Marilyn Manson was getting trapped inside of its own style and image and Mechanical Animals took a sledgehammer to that image and rearranged the shards in a way that no album after could manage to do again.