These people were so
nasty that the other
Meso-American peoples were glad the
Spanish (also
nasty) came over with
Hernando Cortez
A cute thing is the Aztecs called themselves the Mexica. The Aztecs were a name the other tribes used to refer to this bloody, aggressive empire at its peak (just as the Spanish were.)
Keep in mind the Spanish could not have won as easily without the help of diseases such as Smallpox and the other tribes.