Spacely or Cogswell, who would you rather work for?
Personally, I think I'd choose Cogswell, because all things considered he's the more content of the two. Sure he's sleazy, nosey, and greasy, but he's an otherwise decent man and pretty laid back, whereas Spacely screams his head off and throws fits all the time. He's a nasty person judging by the way he treats George.
So I would rather work at Cogswell Cogs than Spacely Sprocketts. Sure the latter seems laden with thrilling adventure, derring-do, and smart-a** robots, I'd still go with the more laid-back boss.