Do all faiths lead to God?

All roads lead to God was a statement that someone gave me this afternoon. It is quite a common belief, in our modern culture it sounds very untolerant to say that only one faith is true, surely they all have some measure of the truth, God knows what is going on and when it comes to the crunch we will all enter heaven.
On the surface that sounds quite plausable. However, I want you to imagine for a moment that you are standing at the top of a cliff and you say I don't believe in gravity, you jump, unfortunately for you it wouldn't take long before you hit the bottom. The point is, what you believe doesn't change the truth, there is a truth and we need to know what it is otherwise we are soon going to hit the bottom of the cliff. The difference in faiths is huge and they all differ, they all claim different things, they cannot all be true. We each have a view of the world, it is important to know which is truth. How do we know which is true?
When trying to find out the truth we examine the evidence and weigh it up for ourselves. You put all the pieces together and see what you come back with. The beauty about Christianity is it is all based on Jesus, all based on him coming to earth, on him entering history. Therefore we can examine it, he performed miracles, he rose from the dead, he rose others from the dead, he calmed storms, he has been written about over 300 times before he came to earth, he......
Before I became a Christian I looked into some other faiths, however the claims made by other groups were usually made by one person in a cave, in a secret location, just on their own or something similar. One person had said something and was very persuasive. Whereas I found with Christianity that it was a huge event in time that had been spoken about hundereds of years before, where people were willing to die testifying to what they had seen, where a church sprang up like nothing before or since. This surely warrants investigation, please don't make the mistake I did thinking it will be alright in the end, God will be accepting, my fear is that you may be walking to the edge of that cliff withouth preparing for the fall...