Originally Posted by seanp7

I disagree that the 8.30am 'wastes a day' - I find that the red eyes often arrive too early, you can't check in to your hotel, so you wander around like a zombie until you can and try to power through the first day (which gets 'wasted', in my view). You will get 4 hours sleep max on such a short flight. On the other hand, you can stay awake on the day flight and get a good night's sleep when you arrive.

lol you should have stated that the 8.30am has no availability in the first post - that changes everything. Go with what's available for 4 people. 10pm is good. EWR in the summer is unpredictable - I wouldn't get too anxious about flight times as a summer thunderstorm could ruin any flight. Book what you can now.