I have three Pannys, and out of the box, the picture is horrible. When properly calibrated, I have yet to find a TV that surpasses the Panny. 3D will always be dimmer than 2D, because you are only seeing one-half of the display at a time; however, properly calibrating the TV will compensate for that. I have no problems watching 3D on my Panny. I have not watched The Avengers, but Avatar in 3D on my Panny is spectacular.