So question, there is an A1, A2, and an A3 version of the AUG, correct? I was trying to compare the rates of fire just to try and find differences besides weight(probably the most important to me) and they were only showing automatic rate of fire for the AUG. The STG seems to only have a weight advantage and everything else seems to be better on the AUG. The gas operation is more complex on the AUG and seems like its more effecient as well.
The way it stands right now is Id pick the AUG. But Im gonna hold my vote for other peoples responses, then pick.