He was the Rev. Dr. Martin Luther King, and I'll bet he was more of a Reverend than Jesse Jackassson ever could be.
There's no "Betting" about it, he WAS twenty times the man of God that Jackson could ever be, and fifty times the man of God that Al Sharpton could ever be.
The man had his faults and weaknesses, to be certain (What good man doesn't?), but he earnestly served Jesus, he devoted his life to following God and promoting peace and equality among his fellow man. He sought racial equality rather than black supremacy and nonviolent resistance rather than active violence, and he and his followers had to put up with being mocked and dismissed as "Chumps" and "Uncle Toms" by the Nation of Islam types for that reason.
Jackson and Sharpton, in contrast, are hypocritical, self- promoting, hatemongering false Christians who claim both to be honoring Dr. King's legacy and to be serving God even as they deliberately encourage bigotry against whites, Jews, etc., and pay little more than lip service (And particularly cheap and sparse lip service at that) to the faith they claim to profess. To them, their faith is just a means to an end to promote their larger political goals only valuable as long as it can continue to be used to advance their political goals, whereas for any true Christian involved in social action such as Dr. King, it should be the other way around (Their political goals being an extension of their faith).
Martin Luther King, Jr. (Who, btw, to furter make lurking DUmmies' heads explode, was a REPUBLICAN) is at this moment resting comfortably in the Kingdom of the God he faithfully served, whereas I imagine it will not be pretty for Jackson and Sharpton to stand before the Lord on the Day of Judgment.