It's mostly about the realities of the stitching though. 180 3D is usually done with two cameras facing forward with a good lens to capture the maximum from eac

It's mostly about the realities of the stitching though. 180 3D is usually done with two cameras facing forward with a good lens to capture the maximum from each side. 360 3d is a huge lie in reality, although when it's well done (Felix&Paul studios come to mind), it can be quite pleasing. I'll be doing both 180 3d and 360 for a friends marriage. I'm using the 180 3d to have the guests come and leave the newlyweds a personal message. Everyone will come wish them good luck and lots of love etc. Then the 360 shots are fixed and capture the feeling of the moment, like reliving it. The 3d effect on 180 feels better and your focus is guided too. Anyways just my 2 cents. Edit : Just noticed your post was about 3d vs non 3d for the most part.