I'll vote for fiber doing everything better. Do alot of initial work prints in RC, then it is off to fiber for the finished product. To me there is just nothing quite as nice as a fiber print - but as was stated earlier, it is what I am used to. By the way, I hang mine from one end and let them drip-dry. Takes about a day and yes they do curl, but a quick pass in the old heat press and they have lost most of the curl. After a couple of days they are as flat a the RC.
I've noticed that RC seems thicker, but I think it is due to the plastic coating giving it a thicker feel.