orkz is da best because we grow like fungous, once we on your planet it will either be ours, or glassed by the humies to the warp.
orkz R best cuz they are often comic relief in a world filled to the brim with grim dark. Along with their ramshackle appearance and strange random and often times self destructive weapons.
I would say it is da DAKKA, the DAKKA is wut makes us the best we got the Most DAKKA DAKKA DAKKA, and weez got tons o shinies and teef. Oi, and our waaaggghhh is the WAAAAAGGGGHHHHHIEST!!!!!!!!
Nothing like making things work because you said they do, being green is always the best color, beating things up for the sole purpose of just doing it and humor....we are full of Waaaagh! humor!