[Formendacil]

By "our race", I have always taken Aragorn to mean the "race" of the descendents of Luthien- those Children of Eru blessedly lucky to have the genes of the Maiar flow through their veins. Of course, I have also always seen Aragorn and Elrond's healing powers as deriving, in the main, from their foremother.

Taken this way, Elrond is definitely the "greatest" of this "race", in that he is the one related at the fewest removes to Luthien, and consequently has the greatest portion of Maia blood ( 1/16 if the numbers on this thread at to be believed).

Of course, the descendents of Luthien aren't exactly a race, persay, although racially they are genetically different from all other Men and Elves.