I myself have never been on a cruise. My uncle is an avid RCCL cruiser. I also have some friends that have done Disney Cruises. I haven't heard a bad review of either. The Disunplugged team travels often on both
DCL and RCCL and say that DCL is first in their opinion with RCCL at a close second. I think the overwhelming thing people say is Disney is better for families than Royal but service is very close between the two. Disney is expensive to begin with and I see why they go to the Caribbean so much, because they have Castaway Cay there and its the cheapest option really. We have looked into a
Disney Cruise but for a family of five its about double what it is to go to WDW for a week and stay at a moderate.