I suppose you would have to become a Sikh, Muslim, Buddist, Jain and Christian etc etc and then be able to answer your question........

On a simpler note I think the Sikh religion is a refinement of all the other religions and therefore you are only presented with all the goodies..... exmple we do not pray to idols, we should believe in equality, we pray to God and not say the founders, we believe in being natural...... someone add some more.... thanks
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/interfaith-dialogues/31467-why-is-sikhism-the-true-religion.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=31467

"Why is it in your view the " right ", or true religion, over other ones ?"

Well I cannot remember which Guru said it when asked by a moghul which is better Hinduism or Islam that the Guru replied that they are both good... so if you are a Hindu, be a good Hindu, if you are a good Christian be a good Christian, if you choose to be a SIkh then be a good SIkh.... different methods of getting to the same creator.