Ok, commander units are really powerful in the original game. But Relic have admitted that while Dawn of War is based on Warhammer 40k, it isnt a direct translation. Some things just arent suited to RTS.
Dont get me wrong...I'm not making any judgments until I play the full game. But last night I played the beta and had a read of the unit stats. My usual units have 200-300 hit points each, and can do somewhere between 6-60 damage. I build an Eldar Avatar....he can do 600+ damage and has 6000+ plus hit points
It's just nuts....yes it's expensive to build one....but blimey, he just tore up the enemy base and made every other unit look totally insignificant.