Babylon 5 and all related supplements, as long as Mongoose continues to do a good job with them. Cry Havok (to see how Monte was able to adapt D20 to allow for mass combat. Yes I know there are others, including the one I designed for Bastion Press's Oathbound: Arena). Oathbound: Wrack & Ruin (hey, I'm the primary author, so I'm entitled to pimp it). Oathbound: Arena (again, wrote a chunk of it, pimp, pimp, pimp). Into the Green (pimp, pimp).