I shoot large format colour transparency film for its vivid colour, strong contrast, exceptional sharpness, fine grain and then the killer, how easy it is to shoot, process, evaluate, scan, post process and have printed in ridiculous sizes..
I've printed one of my trannies 30x60" on Fujiflex amd mounted it to a 6mm thick piece of polished acrylic... This print is now framed in a customers home, but for me, the whole process was exceptionally straight forward.. I shot it, developed it, scanned it, post processed it (dust spotting and minor contrast and sharpness adjustments) then took it to my local print lab to be printed onto Flex and mount it. The finished product was astounding. Literally like standing on the beach looking at the scene where I was standing when I exposed the slide..
I can not process C41 myself (Im sure I could, but I do not now know how)
I can not look at a colour neg on the light table and tell if the image is any good or not.
I can not simply and easily scan a colour neg and then get the correct colour balance straight out of the gate. it takes time and hard work.
Slides are just so much easier for me..
I do wish I could process C41, read a neg on the light table and easily scan and balance.. because I would shoot a hell of a lot more Ektar 100 if I could... A few extra stops of dynamic range would not go astray at times.