Originally Posted by
ijgordon
If it's important to be productive upon landing in Europe, go for the flight that allows longer sleep. That would be CLT, even if it means eating dinner before boarding (at your own expense, or cobbling together something in the AC).
+1
Also, if you really want to visit a lounge, what about the trip back? Lounges in Europe are better than what you'd get in JFK AA terminal or CLT.