One of the greatest drummers in history was Jeff Porcaro, who, as my friend says, did things of outrageous simplicity, but the way he did them, no one else has done... Mr. Time, as he was called, the metronome... And as another friend said, doing a show-off solo after 2 years of practice, any fool can achieve it... and everyone saying: "Ohhh, how good, what a God, what a Genius..." However, playing certain pieces of Steely Dan is immensely more difficult! Collins? A great underrated talent... Nick Mason? Mediocre, but few held the 4/4 like he did... In Italy, Di Cioccio is undoubtedly perhaps the worst (with all the love and respect I have for PFM): Tullio De Piscopo, Walter Calloni, Giulio Capiozzo (R.I.P) are the best...
Are we talking about expressiveness and not technique? Regardless of personal musical tastes, listen to "Pensiero Stupendo" by Patty Pravo: the rhythm is of a rare elegance and emotionality, a song "played" divinely... Dave Weckl is considered one, if not the best drummer in the world: he plays jazz fusion and I’ve even seen him live... He’s a monster, light-years better than Portnoy, but after an hour of concert, I was exhausted!! I’d prefer to get off with Tony Williams, Jack DeJohnette, Bill Bruford, Steve Gadd, Ian Paice, Lars Ulrich, and many others (in random order from jazz to metal). Bonham never impressed me much... Moon was essential to the sound of the band... Carmine Appice and Ginger Baker are among the greatest innovators of the instrument in rock, absolute geniuses...
To conclude: Images and Words. One of the masterpieces of Progressive Metal, an album that still enjoys a brilliant beauty today, where technique serves the composition and emotions... Metropolis is a classic on par with the Floydian, Crimsonian, and Genesisian suites (man, what an awful term, but please let me use it)... Cheers!