Question: what are the characteristics of the four gospels?
Answer: Written in Rome. Mark.
Suffering Messiah. Mark.
Written about 85 CE. Matthew.
Written in Greece. Luke.
Jesus does not abolish the Law. Matthew.
Jesus experiences the physical realities of human life, like fatigue, thirst, hunger. Mark.
Special concern for minorites, women, poor, sinners. ... 
The earliest Gospel.