I am traveling to Fiji Sept 13-24th from SEA via LAX and need some help.

I currently have passes on QF from LAX to SYD then on FJ from SYD to NAN.

Or have the option of going direct on FJ from LAX.

What would you suggest - price difference is about $300.

Also, I am traveling with my husband and 20 month old son. Have recieved conflicting information on weather or not I need to purchase a ticket for him. Can you help sort this out for me?

Any suggestions on must do's or things to avoid while in Fiji?

Any info is much appreciated!
Thanks!
Andrea