Mike Portnoy is one of the best composers of drum parts ever. My all-time favorite drumming album is AWAKE, because MP's drum composition skills there were immaculate. No wasted hits whatsoever. He assigns drum parts that are distinct and fit for every section. MP may have fallen under my radar because of the flash of Metropolis Pt. 1, but boy, does MP know how to write drum parts. It stayed that way up to FII. Peruvian Skies and Trial of Tears has those signature "distinct drum part for every section" style of composition.
Later on, though, MP became enamored with the flash. It first hit me with that snare fill in Fatal Tragedy (you know what I'm talking about). It's like my first experience of MP really trying to call attention to himself instead of playing for the song. Of course, there's the Finally Free outro.
By the time SDOIT came out, I am already getting distracted by a lot of MP's "look-at-me" drumming. The hi-hats in Misunderstood. MP's drum exhibition during Jordan's solo in Blind Faith. First time I heard it, I was going, "Damn it, Mike, I am focusing on what Jordan's doing!"
But the fans love the flash. When asked to name favorite MP drum parts, many fans point to the flash. The air-drummable stuff. The TDOE, the Finally Free, Blind Faith, TGD, HTF flashy stuff. Nobody points to Awake. MP still produced a lot of composition gems, like the SDOIT song, and 8VM. There are songs that balanced composition and flash, like Stream of Consciousness. But I guess MP wants to give what the fans want, so he just drummed to the air-drumming crowd, and he lost me by the time Systematic Chaos came out. I remember many fans going gaga over his drumming in the final third of TCoT, and I freaking can not understand why such drumming that's competing with JP's guitar was fawned over. I mean, listen to how Mangini supported JP in the AWE outro.