6 days in Fiji - Any Suggestions

Heading to Fiji in Oct for 6 days and would like to visit 1 or 2 islands while there. Looking for a mixture on the trip, a few quiet days relaxing on a beach with a few days where there is also a good night life for after the beach. Also looking to stay in decent hotels. Any recommendaions for an intinerary would be appreciated

Beachcomber for the night life.
Nanuya Resort for the relaxing.
And a wonderful few hours cruise along the length of the Yasawa Islands in between.

Cheers,
Peter