Komodo would be my preference but do expect strong current........ Though I'm loosely planning a dive trip to the Similans in Thailand with my girlfriend - I'm not ruling out the idea of Alor on the Komodo Dancer in Indonesia.
PNG has a lot more to offer than Palau below or above water. Men with boar's tusk sticking out from both their nostrils. The hiking in the jungle and mountain. The mossie attack under broad day light. The list is........There is no time for diving.