I always make contact sheets, and often make work prints on RC paper because it's so much quicker and I can experiment and get a sense of direction from quickly washed and dried prints. Then I use fiber paper for the greater depth of tone and 'look' that clearly differentiates it from RC for finished prints. I wish the RC material were as good as the fiber stuff, but so far at least, it doesn't seem to be. OTOH, depending on whom you are making prints for, RC prints do indeed look pretty darn good and just may be good enough...just not compared to the same image on fiber paper.