Just wondering, after having read through the scenarios, in what order would you put them from most interesting to least. My list is as follows.
Rising Tides, Skitter, War Between Worlds, Brotherhood of Babylon, Visages.
Rising Tides seems like it would put players in a much more conventional war setting, with human and alien troop movements and the possibility of the players maybe being conscripted to fight on the front lines.
Skitter seems like it would be a blast, having the players running from overgrown ants. It is almost like the zombie scenario of the book as the ants aren't malicious, they just are out looking for food.
War Between Worlds was my number one before i read any of the scenarios, but dropped back because I was expecting the scenario to be more like what the Rising Tides scenario ended up being. Still has some potential for fun with the players running from flying saucers and little grey men with heat rays.
Brotherhood and Visages both would be fun, though as a GM, I think I would have a harder time running these as I'm not as good at the almost subtle apocalypse scenarios. I have a hard time pulling off the suspense of hidden threats. I think in the right hands both would make for some very excellent game play though.