My daughter is a Cadette Girl Scout (in 8th grade) and my son is a Tenderfoot (6th grade). I am a GS Leader and my exhusband is the local Cubmaster. I lead a kindergarten program for the Pack. I find that there are significant pros and cons from both sides. I like the way that BSA is more organized and I like the way GSUSA is safety oriented in the position of health records. My Girl Scouts knew more about tenting when they were in 2nd - 5th grade than the boys did. So much depends on the leadership team - if the leader likes to camp, they will lead the Scouts to the wilderness.
We are fortunate in that our GS cluster is a tight unit. What I mean is that from Daisys to Seniors we all meet at the same time in the same location. We are currently broken into Daisys (K), Brownies (grades 1-3), Juniors(4-6), Cadettes(7-9) and Seniors(10-12). It is great to see the older girls working with the younger ones, within the Cluster and the individual Troops. It can be difficult to gather supplies (such as for camping) but when we cross the Troop lines, we always have enough.
Our Boy Scout Troop is well organized, with a great Scoutmaster, and there is a large focus on backpacking. It is nice for the Troop to have suplies on hand immediately when an event is planned.
What it boils down to (for me) is the willingness and cooperation of the leaders with each other and the youth we are responsible for. If it needs doing, it gets done.