I always thought Sega had the best names for their systems. Sega Genesis, Sega Saturn, Sega Dreamcast, Sega 32X. And you had to include "Sega" beforehand, because it actually made it sound BETTER.
The worst ones are always the names that are always the generic ones. SUPER Nintendo. Xbox. Playstation. Gamecube. Atari 2600. Playstation 2. Nintendo 64. Xbox 360. Atari 7800. Playstation 3.
Yuck.