Some of "the best" early solid state machines in my mind...
Pre-Firepower:
Sinbad, Joker Poker, Harlem globetrotters.
Post-Firepower:
EBD, Big Game, Mr Ms Pacman, Alien Poker, Laser Cue, Bad Cats, Cyclone, Victory, Devil Riders , Ali.
Later down the post: I also like Skateball, Mystic, and Medusa.