Its your choice mate.No doubt life as PAS officer is difficult given the fact with great powers come great responsibility.But fact of matter is that do some introspection regarding what exactly you want from service.FSP is no doubt a good service it may offer you quality life but you wont have any social recognition in your own backyard.Who told you that you would always land at EU countries or Americas
Do some research about that as well.PAS is tough but its horizontal and vertical mobility along with its traditions,legacy and diversity it offers is unmatched.If you ask me i shall always recommend PAS but again it boils down to individual choices.Do some research and choose your service groups after analyzing pros and cons of them.Hope that answers your query.