These are all very nice resorts in outstanding locations, and in no particular order - except #1 is really my #1:
1. Alpin (previously Anfi) Palace, Muerren, Switzerland - mostly only hotel units, but nice ones, in the most beautiful place I've ever been.
Keitht, eal and KevinRS, and anyone else who has liked Banff Rocky Mountain Resort (and can travel as only a single or a couple): you'd be awestruck by this place too.
2. Hilton, NYC (why isn't this in RCI anymore?

)
3. Pacific Shores, BC - waterfront unit
4. Cala Pi, Mallorca -waterview unit
5. Monarch at Sea Pines, Hilton Head - direct oceanfront bldg
6. Pestana/Carlton Madeira Beach Club - all are oceanfront
7. Mondi-Holiday Grundlsee, Austria - lakeview unit
8. Red Wolf Lakeside Lodge, Lake Tahoe - lakefront unit in newer building
9. Royal Sea Cliff, Kona - newly-refurbished oceanview unit
10. Morritts Grand
Those are the ones that come to mind immediately - I'm quite view-oriented as you can see. I would love to return to any and all of these.