I disagree on generalizing it that much...
400 Zerglings will never beat 100 Roaches.
Bigger is not always better. You have to be smart about army composition, too.
I wasn't talking about supply. I was talking about numbers... I do realize that they take up the same supply. It might have been the reasons for choosing those numbers.
The real APM isn't measured and is your REAL actions per minute. The higher apm, the better the player, that IS a fact. The real APM, like I said above DOESN'T get measured by the SCII built in system.