I'll keep anm1 some company in the minority. I've flown DTW-AMS-ATL with a 14-month old and in a couple of weeks will be doing JFK-LON-JFK with a now 27-month old. That 7-8 hours is the limit for me. The return last year from AMS (morning departure, evening arrival in the US) was pure hell. I shudder whenever I think of it.

I'd like sometime soon to visit family in BOM with the kid and can't imagine taking any of the non-stop 14-15 hour options from the East Coast. Just wouldn't happen with "this kid".