I don't want to assume that alcohol may be a preference, but if it is, then Ohana all the way. Tambu Lounge as you wait, a plethora of Tiki-inspired drinks before and during the meal, just an overall more fun vibe. BOG has a small selection of beer and wine, but just a totally different vibe.
I'm a fan of both meals (really love BOG dinner, BTW), but if this were me at 24, Ohana all the way.