fly 9W since they use nice aircraft 777-300ER,standard indian meals,lower price also if you are a Jet Privilege member you may get two flight counts one way (sfo-bom and bom-del) a few thousand air miles also they giving bonus miles on this sector these days since its new.You can redeem these miles on jet or any partner airline.gift domestic air tickets to friends/relatives or use them for yourself with the miles collected on this flight.the new domestic terminal at Bombay,is not bad at all and jet offers you air side transfer.Go ahead with jet.