I'm fairly new to painting, 2 years or so, and I can tell the difference in paper. I use arches cold press, usually 140lb, and I can tell the difference whether its on the block or a sheet cut down to whatever size. I personally like the full sheets better. But again, maybe it's because of the materials I use, maybe they just work better on that kind of paper. I use tube watercolors and gauche, sometimes FWs and the Dr. martins concentrate watercolor.
I've been starting to get into lining stuff with brushes now, instead of sharpies, it is much more difficult than I imagined, but more satisfying....
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Is it easier to brush line on illustration board, does anyone have any opinions/preferences? I've heard lately from a few people, it's easier to line on that with a brush, because it's not as coarse...