Hi Scubadonna, Indonesia is a great choice, Nov- Feb is officially rainy season although last year didn't really start till Dec, Raja Ampat season is Oct - April and the further North and east you get the better it is. The mola mola are most often seen off Bali mid-July to late October and in the Banda Sea, around Alor September - November. But Raja is good for about everything, seriously healthy coral and abundant fish life, loads of liveaboards to choose from, but they do book up early especially over the Dec/Christmas period.