You dumbass. The StG44 may look like an AK47, but they are two totally different weapons. Aside from the fact that Kalishnakov was working on a prototype before '44 (i think it was either 42 or 43, I have to check), the Germans didnt issue any StG43 in any large quantities. Even after improving on the design and getting the StG44, they still didnt have enough to issue in any large numbers.
As for the StG44-AK47 similarities: The similarities end in the looks.
First off, the StG44 was unreliable and required a lot of maintenance and cleaning. Secondly, most of the parts in the gun were packed in tight, therefore allowing sand/dirt/etc to screw up the moving parts inside.
The AK47 however, is the most reliable gun on the entire planet. You can shove it under sand, throw dirt on it, bury it in dirt and come back a year later, go underwater, and just about anything you can think of, and it will still fire. The parts inside the gun are spread out, and even if a lot of dirt or sand gets in it, it will still fire. Why the hell do you think so many armies/rebel/people around the world use it? Its user-friendly. It is a conscript-army's dream. Low maintenance, high reliability, and it packs a big punch.
Please become more informed before spouting off opinion disguised as fact.