PAS, PSP or Customs
 

Hi everyone. I am a CSS aspirant and would be taking the examination in 2020. PAS, PSP and Customs are my groups of choice but I can't seem to decide the order I'm gonna put them on my application. Customs is definitely gonna be the third choice I guess, but I'm confused regarding PAS and PSP. So, I was wondering if someone from the senior members could shed some light on the three groups, particularly from the perspective of service, responsibilities, nature of work, political interference and of course lifestyle as well.

P.S. I know this question has been asked multiple times but all those thread that I came across seem to be pretty old. So, I would really appreciate if someone could could address the queries from current (2019) perspective and that how things stand today.

Thank you