I can now answer my own questions ... YES, the Vizio glasses work for viewing 3D Panasonic passive.
Will they be more scratch resistant? Regarding physical properties of the plastic lenses I dunno, but I do know I'll be treating the Vizios with more respect. Take better care of them by using the Panny's as the knock arounds that mingle with the clutter on my desk and are used to view my experiments with the new 3D1 camera. When I get set to watch a movie I'll take the Vizios out of the included soft pouch case. I like them better because of the more "sunglasses" like frame. They look heavier, but I don't notice extra weight because they feel fine as they fit me well.