I do JFK-CDG-DEL few times a year, and >75% of those trips, I opt for AF in J.

Mostly I take the ~11:30pm departure ex-JFK, and will have my J dinner served at the AF Lounge. That way, I can get a good 5-6 hours of uninterrupted sleep before arrival.


Now JFK T1 is in a miserable shape (not that T4 is far better), and DL SkyClub is much nicer than the AF Lounge.