There are different kinds of pleasures and pains both physical and mental pain and there are also various tastes like sweet, sour, hot etc., Some like sweet and some are allergic to sweet (which may even cause death) like wise, Mostly in this world people enjoy physical pleasure and their are fear of physical pain. But there are some kind of people who enjoys physical pain (masochist - a person who enjoys pain) and hates pleasures. If all the punishments are going to be given from Garuda Purana in this world for the masochist he is really going to enjoy every punishments given to him like in heaven. This does make the sense that pain and pleasures are different tastes. So why does hell chose a particular taste("Pain") just because people are feared of it and they will believe in religion?
Forever theory of hell and heaven Hinduism is good in this part (re-incarnations). I do not accept some religions saying Hell is forever. One cannot be punished forever for 1-1xx years of his/her life span. I appreciate this concept here. So no more question here. I am not comparing Religion X with Hinduism.
THE PRIME SIN Here I include all religions (including Hinduism) but not limiting/comparing/complaining one religion with another.
The prime sin in most of the religions is itself, Not believing their own God. Say there are X religions in the world and I belong to Hinduism and I do believe in God (Yes I believe in all Hindu Gods). So this makes me a non-believer of X-1 religions. So, Do I need to suffer in X-1 hells? this makes no sense. How Hinduism address this? If somebody (not-be so don't blame) says Hinduism is the only religion, take another person with different religion does he need to suffer in our hell just because he trusted the wrong God?