What's a good MP scenario?

[Matrix]

I'm not very familiar with the best scenarios yet. I only know my own.

But I was wondering: what scenario would be best suited for MP (PBEM) games? That would also mean, in what scenarios are the players best balanced...

 

[warpstorm]

The Dinobarbs one is pretty good. 4 players, one island, Middle Ages start, Accel Production. Oh yeah, tough barbs.