You have plenty of time as long as nothing goes wrong, and something goes wrong about 90% of the time. Remember, when you are connecting to FLL, LAX, etc and you misconnect you have backup, lots of it. When connecting to an international destination you have NONE. There is one flight per day and the international flights leave ontime nearly 100%. They rarely wait, unless there is an unusual amount of BF customers to wait for or a VIP. Bottom line, go to the airport for the flight before the one you are scheduled on and stby for it and give yourself more time in EWR, trust me. even if you have a couple hours there EWR has plenty to do and eat and you will have less stress. Join the Presidents Club, or just get a pass for the day, it is worth it.

If you drink alcohol or buy headsets purchase the coupons from the Eticket machines before you go, enough for the rountrip as I don't know if they have the machines in the Asia market. Not only can you use credit cards as opposed to "correct cash" on the plane, you get freebies. It is like happy hour on the plane. I always carry a stash.