I have eaten at all 3 restaurants twice and, IMO, you can't go wrong with Cali Grill or Jiko. Neither DH nor I are fans of Artist Point. When DH and I compare Artist Point to the other 2, it just doesn't feel as special. The service, ambiance, and flavors of Artist Point just don't hold a candle to Cali Grill or Jiko.
Both Cali Grill and Jiko are beautiful restaurants (Hint: if you're looking for an intimate dinner, request the wine room at Cali Grill - it's much quieter than the main dining room). They both have attentive servers who know when to leave you alone!
Jiko is going to offer unique dishes with bold flavors - if you're looking to try something you can't get at home, this is the place to go. I have had their filet with mac n cheese (RIP) and curry shrimp (super spicy!) and both were excellent and prepared just as I requested. DH and I like to try new foods, and Jiko is the perfect place to do that. We have had wild boar and ostrich there!
Cali Grill has some unique offerings, too. If you like sushi, this is a great place to go. The favorite thing I have had there is their bison with mac n cheese - wow. Tender, cooked perfectly, lots of flavor. I also think Cali Grill has a slight edge on Jiko in terms of dessert!
You'll find many people love Artist Point, and you might as well, but we have had 2 lackluster meals there and we won't be back.
Congratulations, BTW, on your honeymoon!