The noble Aztecs were much better at human sacrifice than the wimpy Christians.  

https://en.wikipedia.org/wiki/Human_sacrifice_in_Aztec_culture

"Michael Harner, in his 1977 article The Enigma of Aztec Sacrifice, estimates the number of persons sacrificed in central Mexico in the 15th century as high as 250,000 per year. Fernando de Alva Cortés Ixtlilxochitl, a Mexica descendant and the author of Codex Ixtlilxochitl, estimated that one in five children of the Mexica subjects was killed annually. Victor Davis Hanson argues that a claim by Don Carlos Zumárraga of 20,000 per annum is "more plausible."