I voted G.I. Joe because I think they are an improved line and they really have been around so long you gotta give them a nod for what they've accomplished.
They're not interesting to me because of the "Super hero" quality they have and the articulation isn't increased across the line like it should be, but they're getting there and the last couple years have seen this line dominating net profits for Hasbro by %. That's not too shabby.
If I had to vote in a line in "Other" I'd either go with DML's 1:6 WW2 line which is the pinnacle of action figure perfection, or BBi's delving into 1:18 military figures on a broad retail scale. They're just impressive sporting over 20 points of articulation each on a figure the size of our beloved SW figure's basic line.
Hey Hasbro? ya listenin'?