Orcs do not suck - they have the best support casters in the game
(witch doctors + shaman)

They also have the best Tier 1 units (Grunts) vs
NE (hunts), HMN (footmen), UD (ghouls)

shaman's bloodlust is one of the most effective positive buffs in the game. also against an early rush - orcs have orc burrows and towers......