Let the analogy-analysis begin.
Game Gear... Game Boy. The true difference between the two lies in the words "Gear" and "Boy". Game is simply a shared attribute... the fact that the two play "games".
Boy - A young male. In games, he can be seen as a potential hero... or an annoying spectator over your shoulder.
Gear - Either the heart of a mechanism... or in gaming terms, a large Mech used for military or otherwise destructive means (i.e. Metal Gear or Xenogear).
Conclusion: Gears trounce little boys.