jhp:

Additional RSSC included items not included on Crystal include no additional charge for alternative dining, in suite mini bar, included soft drinks and bottled water all over the ship, cocktails or beer (as well as wine) in the dining rooms at dinner, and lower internet use cost. In addition, Crystal reportedly has higher drink prices (when they are not included on Radisson). And, my checks have shown that Crystal has a bit higher fares than Radisson ---- and this is more than a bit when suites are made comparable.

Hope this helps,
Richard :) :) :)