You can believe you're right without being intolerant. I am a Christian, Pentecostal to be exact. As far as what others believe, here's my stance.
Other Christian denominations - This includes all mainstream Catholic and Protestant denominations. It's not worth the effort to convince them I'm right, only that I could be right if it even goes that far. They all believe Jesus died for them and that's enough. Everything else is just doctrine. Now, believing in the baptism of the Holy Spirit, I hope that they will believe that I'm right so they can enjoy it, too, but I don't think it's necessary for salvation.
Jews - I'm really following an extension of their religion and hope they will realize that the Messiah has come.
Muslims - These I believe were misled and need to be shown that God is graceful, not ruthless.
Hindus - I don't know enough about the religion to make a full assessment, but since they don't believe in Jesus, I believe it is necessary to tell them...at the other end of a microphone, not a weapon, as has been done before.
Buddhists - From what I've seen, Buddhism is more a philosophy than a religion, and is compatible with Christianity.
I see other religions as deceptions that are harmful to the souls of those who follow them, but I try to take a sensitive approach by seeing the followers of those religions as simply lost people who need to be shown the way.