Yeah, I guess Kyle is more high-power than moderately powerful. But it's his lightsaber skills that are his real strength, hence the Battlemaster thing.
Jeeze. Do the Red Lanterns all spit their crap?
Yeah, rage is supposed to replace their blood or some nonsense. I don't get why being angry means their whole corps is super-gross, but I guess that's just me.
The Blue Lanterns have some hot costumes. I didn't realize their costumes were so cool.
Anyway, to answer
bnightwing's question:
Red = rage
Orange = avarice (or greed, if you want to be less technical)
Yellow = fear (this is the Sinestro Corps)
Green = willpower (it's sort of like the GLs are supposed to be emotion-neutral and, indeed, that's exactly what the Guardians are trying to force them to be)
Blue = hope (nobody's really sure what that means, but the Blue Lanterns have shown that they can supercharge other corps' powers)
Indigo = compassion
Violet = love (this is the Star Sapphire Corps)
Black = death (the Black Lantern Corps of resurrected dead characters)