The Boeing 737 is the work horse of the aviation industry with 9,700 built to date.
Simple statistics will show us that the majority of single aisle narrow body accidents will be.....737's...
You come from the Airbus you say:
For the entire A320 family, 118 aviation accidents and incidents have occurred (the last one being Afriqiyah Airways Flight 209 on 23 Dec 2016), including 35 hull loss accidents (the last one being EgyptAir Flight 804 on 19 May 2016),and a total of 1393 fatalities in 17 fatal accidents (the last one aboard EgyptAir Flight 804 on 19 May 2016).
Unfortunately for both types the same applies, unscrupulous operators cutting cost on training and outright corruption at Aviation Authorities.
To be honest I find the question somewhat ignorant, coming from a professional pilot.