Who Is This "Lord" Guy, Anyway?

RotK rocked my world. Had a bit of a revelation talking about it over drinks afterwards. I was describing my reactions to an early scene, in which I felt the One Ring was saying to the audience, "In case you've forgotten, these movies are about me." Bro-in-law Barry said, "Well, it is right there in the title." I replied, "Wait a minute. Is the Lord of the Rings -- the actual 'Lord' -- Sauron, or the One Ring itself?" That stopped everyone for a minute.

-One ring to rule them all, indeed.