I always start with RC. It is my test bed. If a print is worthy, it graduates to fiber. OF course there are many fiber papers with many surfaces. If glossy floats your boat, Agfa RC is pretty glassy. I use a lot of it. But a work of art for me winds up on Forte FB glossy - not ferrotyped - and toned and mounted and I like the luster look of that. After a number of years (15-20?), the plastic coating on the RC paper will fade and yellow and it will not look as good. The FB paper will look the same in 100 years as it does today. It has been a lot of years since I used Gallery - I have some hanging and it seems to need the lighting a certain way to really look good. Some papers need really appropriate light to be great. I have been using some freestyle glossy fb paper lately and it seems OK - the Forte seems a little contrastier and the paper base is certainly warmer.