"It is a good thing that it is just your impression. other wise some might think that you were looking for rationalizations."
I have a
personal preference for the G3, and a
personal dislike for the FAL. This does not require rationalization. When I was afield both rifles were common place and seen as roughly equal.
My personal preference is based on several things:
We were strongly encouraged to shun anything that could snag, and the G3 is smoother, so via conditioning I saw that look as more appealing.
The extra few inches in the FAL length was just enough to make it troublesome in vehicles.
I found the G3 recoil more manageable and much more controllable in full auto.
I found the G3 more reliable under field conditions, the simple and overpowered action suffered less from nasty conditions. No gas system to deal with either. It may be brutal on brass, but when dirty and dusty, firing ammo that had not been stored well, it
always ejected.
Ergonomically, the gun fits me perfectly, I pick it up, point... and I am on target. Whereas for me the FAL just never fit me that well.
The FALs commonly found in civilian possession in the US are more typically made by an original manufacturer, or at least a licensed factory.
I'd be interested to know what you are basing this one.
As for my impressions of USA FALs being factory and HK clones being aftermarket, that is because that is what the ones I have encountered here have been. The shooters I know who have FALs have original factory models, I have seen some kit builds (all excellent), but I have encountered less of them.
In contrast the Hk clones I have seen at the range, especially in recent years, have been knockoffs of mediocre to decent quality, but not in the class of original German rifles.
The question was between the FAL and the G3, I presumed this meant a real FAL and a real G3, and spoke as such. Due to the construction of the G3 I do not believe a kit build will equal the quality of the original, I do believe the FAL kits can match the original as the construction lends itself more to this. But as I have not personally built any, I cannot say so with certainty.
As to the STGW57... I used to know some Swiss soldiers that thought very well of theirs, and the Swiss are known to make some very fine machines. I myself have not handled one enough to add to the discussion.