The Patriots’ third straight loss to the Giants was simple to analyze: the Giants are better than the Patriots. Not by a lot and not if the two of them are playing a lot of other NFL teams, but in a facemask-to-facemask confrontation, what the Giants do best dovetails badly with what the Patriots do worst. The Giants beat them in the Super Bowl four years ago the same way they beat them last Sunday — and they beat them Sunday in much the same way they beat them in November: They beat them on the line of scrimmage and they beat them with their passing game.