I personally prefer #41, however...
He doesn't have the rifle. That's his one major drawback to me.
I love the Antenna... Every squad needs a comm specialist so that's what I use the Antenna for (every like 12th figure wears the apparatus). The articulation is superior, so I can pull some better poses. I think the sculpt looks better too.
That said, #6 shines in several ways... First, he does have the rifle (and the carbine), which makes him a great figure in and of itself. Second, his sculpt's not bad in the slightest... The shoulder pads look barely different than #41's if you ask me. Third, my #6 troops can pull off a kneeling pose better than any SA Trooper I own (VOTC Stormie included). Gotta have some guys take a knee in combat dioramas.
To me, I'm equally happy with the figures for different reasons... The battledamage on #41's doesn't bug me in the slightest either. It resembles light scratches to me. Clean grunts are nice too. I'd take 50 more of both I think... Then 50 of various unit colors/helmet designs as well.