Cali Grill has the best food of the three. It is the noisiest, but then the fireworks out on the patio is pretty romantic, I would think, but I'm a guy, so what do I know?
Citricos is the "fanciest" atmosphere of the three (aided by the fact that you have to walk through the GF lobby to get to it), but the food is uneven. Of the four times we've eaten there, twice it's been great, twice just "so so".
Artist Point is very rustic, woodsy, etc., like a fancy hunting lodge. We thought the food and service were the worst of any of the signatures we've been to, and we've been to all except Yachtmen's. Still a good meal, and the adult mac and cheese was fantastic, but everything else was very unremarkable. We'll probably give it a second try on our next trip, though.