New the forum.

I don't have any elite status except SPG Plat - Delta Gold.

I will be doing a lot of travel to LAX - Sydney and LA NYC and my company will pay for Business Class to Sydney. Trying to decide if I should be "loyal" to UA/NZ or should I go to One World with Qantas and AA?

The third option is go V Australia Virgin America etc.

Any suggestions?

Also with all of the linked programs which airline FF program should I use to gain "elite" Status?