Week 01 "Door Problem"
The best job to me is probably the Creative Director, since you can work on the game from a bird's eye view but still have control over how it turns out. The worst job in this list is likely the combat designer, since it includes a ton of smaller considerations that need testing instead of just plopping an asset down or something. It's also the longest here. The weirdest is probably the publisher, since elements of the game aren't always conducive to helping a game stand out. Finally, game design is just a part of game development--design is mostly about how players interact with the world and how the game is played and reacts to players, while dev includes the huge scope of planning a project, working with others, advertising, testing, etc.