Some years before his death, when asked which was his favorite among his opinions, Antonin Scalia named Crawford v. Washington. It was a good choice. Justice Scalia's opinion in Crawford reclaimed the Confrontation Clause of the Sixth Amendment to the Constitution and restored it to its rightful place as one of the central protections of our criminal justice system. He must have found it particularly satisfying that the opinion achieved this result by focusing on the historical meaning of the text, and that it gained the concurrence of all but two members of the Court, from all ideological positions.
Friedman, Richard D. "Rescued from the Grave and Then Covered with Mud: Justice Scalia and the Unfinished Restoration of the Confrontation Right." Minn. L. Rev. Headnotes 101, Scalia Symposium (2016): 39-51.