I would say Locuste, they actually look tough.
Also, who ever said more weapons and types of troops = Win in a war situation.
I'm pretty sure a country would be happy with just nukes in their arsenal then an array of sniper rifles, assault rifles, shot guns, machine guns and pistols....
On topic: Locuste in generally are more bulkier so if ones charging at you, there's more sense of urgency. Not to mention the fact that they come up from underneath = surprise attack FTW.
I think the captain forgot that chimera may have taken europe, Locuste took the entire planet.
@OP: Nice attempt at trying to mask a PS3 vs 360 thread btw, you can tell this is one because of who's posting what side is more "badass".