HOW CAN U LEAVE OUT?:
1. The Borg - Star trek
2. Species 8472 - Star trek
3. The Wraith - Stargate Atlantis
4. The Cylons - Battlestar Galactica
5. The Jem'Hadar - Star trek
And i gotta say this...
6. CHUCK NORRIS??????? (jk) lol
Robots and Undead totally have Super Mutants beat. A Tank could totally wipe the floor with a super mutant. Also the sheer numbers of undead attacking at once would eventually overwhelm them. And as for robots, hell just look at the Geth in Mass Effect, They MAKE zombie undead things so the geth already have the undead beat, I don't know I think that the Geth could also take the dinosaurs to. Also the reapers are robots. Robots would win in the end.
nice list guys.............BUT, you forgot one race that race is the human race and yes i klnow Nazis are tectically barly human but still you got to put humanity oin there as a whole.
Oh what no Covenant? If you mentioned the flood in this one then next ones gotta be the Covenant if they lost on the ground they pull back into orbit and "glass" the planet which means burn it to a crisp.
Ok once again you didn't do your resurch on the gears the danm intro movie because the obviosly the underground tunnels were big enough to escape through and the locust that didn't got emulsion poisening(Like Derral the ridable brumak) so pay attention to more than RPG's I can and I'm 14 and play SH!T loads of both