By all accounts McNeil has had a better season, but he's still going to suffer from rookie nerves. In fact, I'm expecting the entire Chargers team to be rusty/nervous at the beginning of Sunday's matchup because they aren't used to being here.
The San Diego o-line are much better inline blockers than the jets, but on the other hand this front three is so strong and well built, I think they will win the battle at LOS again. Controlling LT off the edge and cover Gates will be the keys on D.