Quantity is best used by someone who is small and needs the extra troops early and fast. As Mughals, that isn't you.
Since Mughals have strong heathen tolerance and religious unity, you may prefer Religious to Humanist. If you decide to form Yuan as the Mughals, I'd go with Humanist instead.
Influence is always a great pick, but vassal feeding isn't as big of a deal since your coring costs will be incredibly low, between Admin ideas, your traditions and then admin efficiency later on. Diplomatic might work better. Since you are in Asia, I'd recommend making a few of the colonizers like Ternate or Brunei or someone a vassal so they can colonize all that land in the Phillipines and so forth for you.
Defensive, Offensive, and Quality are all roughly equally strong, in my experience.
My first five idea picks would be, in order, Admin, Diplomatic, Offensive, Religious, Quality,