EtihadGuest vs JetPrivilege
 

I am planning to travel from PNQ-AUH-JFK-AUH-DEL in Business class with the following itinerary:

PNQ-AUH (9W-Jet); AUH-JFK (EY); JFK-AUH (EY); AUH-DEL (9W).

I have a EtihadGuest Silver and JetPrivilege Platinum. In which of these frequent flyer program should I accumulate the miles to maximize the benefits?

I feel that though it might seem that I might accumulate more miles in 9W JetPrivilege due to Platinum status but that might be deceiving and not true.

Any expert comments / experience?

Id consider crediting them to JET. Depends what fare class of business you are in.
you may get a bit less but will probably move on to gold?
with platinum with jet you get extra 50% miles vs 25% with silver on EY.
globally depends what you want. im guessing you have most of your miles in jet account?
You may also be near to gold with etihad and considering going for that which will give you better perks when flying ey..