I was just doing some thinking about brainstorming, and I thought that perhaps starting with an original scoring mechanism is a good way to go. Here are some of the pluses and minuses:
+ It kicks the design process off to a good start.
+ It prevents your game from being too "samey".
- It may be very non-thematic, unless the scoring fits exactly into the perfect theme.
- It may feels rather cold and mechanical, though this for me may not be a problem, if the game is designed with taste.
There are more, I believe, but I would like to here your thoughts on this way of designing, and most especially your experiences.