Commodore 64/YMMV


 * Awesome Music: The SID chip is made of pure concentrated awesome. It only has 3 voices because if it had four it would have exploded from awesome overload. And some awesome composers managed to squeeze a fourth voice out of it anyway! MULE and Skate or Die are some examples above; Taito's ports of some of their arcade games (such as Arkanoid II and Operation Wolf) are others, where the arcade music was replaced by elaborate synthpop compositions.
 * The SID chip is so awesome that the metal band Machinae Supremacy relies on it for their sound.
 * Fanon Discontinuity: The C64 had successors other than the C128 -- the TED series, specifically the Plus/4 and the C16. Although the Plus/4 sold somewhat well in Europe, its graphics and sound capabilities were a pale shadow of the C64's and ultimately rendered it a historical footnote.
 * First Installment Wins: The C64 was still much more popular than the 128, outlasting it by several years.