There's still something really fun and satisfying about a well integrated shaker. For example, when Sparky is electrocuted in Met and the shaker sorta feels like the game is being zapped. MMr when the castle is exploding or the trolls pop up. Iron Man's shaking is great - it's choreographed with every explosion, Monger hit, machine gun rattle, Whiplash whip. Spider-Man has tons of great shaker. Little bursts every time you get a combo, "hits" every time you hit a villain, "growls" when Venom growls, choreography to Sandman & Doc Ock's actions and DMD footage.
As for Aerosmith - not sure what the shaker situation is! I have to imagine it's synced to hitting the box and the Multiball ball release at the very least.