In 2000, AI had a 91.4% systemwide ontime percentage and a 93% ontime percentage on their transatlantic routes. Better than pretty much any other operator out there!
You can claim TW Aviator miles (till November) on AI flights, or you can claim AI's own Flying Return points. You may NOT claim AF Frequence Plus miles, BUT you can use Flying Return points for travel on Air France flights.
Ground service on AI at JFK is exceptional for F and J class pax since AI has its own Maharaja Lounge on the third floor of Terminal 4. You check in, head up to the lounge and you will be personally escorted to the gate by one of the ground staff when boarding commences.
Ground service at LHR is equally painless, and the Maharaja Lounge at Heathrow (by Gate 1) is truly magnificent and they have the most divine buffet of Indian snacks - I always pig out there like there is no tomorrow!