No contest DL all the way. I honestly think that DL's hard product and soft product are both better on this route. Also, I'd also look at arrival/departure times and see if that's a factor. I get not wanting to stop at JFK but I think it's worth it in this case. Also, is this one of the "special" DL routes that come w/ Sky Club access (not that that means much) but given the choice of club or no club, it's nicer to relax in the Sky Club. Just my opinion(s)// Hope you all have a wonderful trip!