Don't let the price premium for Copper Creek scare you away if that's where you'd really like to be. Copper Creek has lower annual dues than Riviera. Held to contract expiration, a present value analysis with reasonable assumptions shows that actual equivalent cost per night for CCV and RIV is essentially the same. If you had to sell before expiration, it's likely that CCV will sell for more, recouping the extra initial investment. As long as you don't have to finance the upfront difference in cost between them, I think you can safely consider them equivalent in cost.
Keep in mind that if you love RIV, if you buy a resale contract you won't be able to stay at RIV at all.
Pick the one you love the most. With this small of a contract the annual difference in cost between any of the options is negligible.