Exile 3 hands down. A3 and A3:RW are basically just watered down versions of Exile 3 with shiner graphics.
As I have a huge dislike of enemy level scaling in games I personally am just waiting on something different. Been waiting since the 90's mind you. For another 6 person party Spiderweb game... Still waiting. On he bright side got Exile 1-3 up and running again. Still by far my favorite Spiderweb games.