Here's a comparison I did a while ago. I wasn't shooting for quality...it was just a time test. All three were the exact same scene, I didn't change anything. Default Poser lighting. The p4 renders had everything turned on. No postwork except to size the image for this board and add the text. Note: since I installed sr4, everything seems slower now, p4 renders take a *lot* longer. Can't say for FF renders cuz I don't use it anymore. No reason to.