Nobody is arguing is that Green lantern is BETTER known than wonder woman.
You could say that the Wonder woman in the TV SHOW and the One in the comics have little in common. Maybe they have the same symbol and the same colour hair but they are virtually different things and people like the two for different reasons.
I really can't wait for the Green lantern Movie. look at the remarkable success of the IRONMAN Movie.
Ask anyone on the street who Ironman is now and they will tell you who he is.