Fuji Pro Luster Super Type PD
Fuji pro paper (Super Type PD) has a much deeper black than Fuji's consumer paper (Crystal Archive II) you can really see blacks "pop", whereas on Crystal Archive they would be sort of a grayish black - it still looks black, but is not a rich deep black like the pro paper is. It is also thicker, which makes it more durable - much less likely to get a dent or ding in it. Finally it has a professional watermark on the back, stating that professional images are subject to copyright - do not reproduce.
Pro Luster prints are great for all types of work. Must have for all album print orders and portraits because of the thickness of the paper (less chance of getting a ding in it) and the great D-Max.