I was hoping to start a discussion about the differences, pros and cons of these two film stocks to provide insight into their individual strengths and weaknesses. I'd like to avoid all mention of the now defunct impossible film stock as it no longer is being produced. The format (square, credit card size, traditional polaroid, spectra, wide etc.) would be fair game. Colour tone, clarity, contrast, etc.. would also be great to comment on. I would prefer that commenters actually have personal experience with both film stocks. To get things started, I'll mention that I've noticed that Fuji instax film suffers from a flaw that I have not noticed with the new polaroid originals film. Any areas in the photograph that are particularly bright will show up as black in the instax film (photos of the sun, bright candles, flash reflections). Polaroid originals doesn't suffer from this problem. I've also noticed that Fuji instax photos seem clearer or more detailed, but only marginally so over the new polaroid original film. What have been your experiences?