Imran, Have read the bible, the gita, parsi, jain, buddhist, jewish, taosim philosohpies ?
How can you say that quran is better ?
Mohammed preached because he might have known other religions or studied them. But what makes you preach Islam ? Shoudn't you find out which is the best before you preach? Just as I am ignorant about Islam, you are ignorant about all other religions. But you still want to preach Islam to everybody... In short, I would defend your right to preach Islam, but I do not agree with your conduct.