I'd vote for the Star Trek mod. Babylon 5 is cool, but I think you'd get more races, (Gorn, Vulcans, Andorians, Klingons, Romulins, Tholian Pirates, Humans, Orions,... and that's just from the Kirk/Spock years :crazyeye: ), more techs over the 150+ years spanning the 5 tv series and movies...