I am headed to CDG today/tonight and will be flying on a delta mileage business class ticket but on continental codeshares. I have a four hour layover in Newark and wonder which lounge there is best. I am told by Delta that I can go to DL, NW or CO lounges. If the Presidents Club/s is/are nice, that would be easiest since I will be in the CO gate area, but if it's a dump and the others are nice, I don't mind taking a walk. Can anyone give some advice?