Do we really need to argue about religion?

Offcourse NOT. That kind of question sholud be banned.

Not at all required but express some good things of each religion for others to know.

No should not. None will agree that his religion is bad than others. So, we must not argu about religion. If we like to argue, in any case, we shall have to know deeply about all religions exists in this worl and then can start argument and to select which one is best otherwise within our small knowledge we cannot urgue. In every religion has concerete instruction how to lead life in the earth - if we do not follow it properly we wil not save - hell is must in our fate. Let us follow our each religion and help mankind and believe in one GOD for save.