Flexibility? LCC add-ons?
- PG is effectively a full-service carrier, and includes meals, luggage and a (basic) lounge access for all passengers.
- FD is a true LCC where there are many add-ons, so you might need to compare like-for-like (luggage, meals seating).
Both are quite OK, and generally I go for most convenient schedule. That includes with or without family as the considerations change there as well.