Looking for some opinions here.

What will I have the most luck with using my Skymiles.

Need 2 business class tickets and am curious which of these redemptions I have the best chance at...

Skymiles for Business class to the Maldives on Korean Air (West Coast, Connecting through Seoul, and onto Male)

Skymiles for Business class to Tahiti on Air France

Skymiles for Business class to Australia on Virgin Australia

We are targeting a January 2017 trip, so I can book right when space opens, but we really want to have our travel plans set at least 6 months in advance.

Thanks for the opinions and advice!