There are religions springing up just coz some "prophet" had a revelation about so and so earlier religion.
Y'know, its all a joke until God or an angel talks to you or until you believe said "prophet" yourself.
So which prophet is it? Every one calls himself "The Last Prophet". Everyone of them have their own remix on an earlier religion that sometimes it gets hard to recognize what the original was. Christianity got several sects, so do Islam (which is already a remix of the Israelite religion to begin with), everyone claiming to be "the one".
Which should one join?
It's the foundational paperwork that counts. Find the prophecies in the Bible. Then find which ones have been fulfilled and not. Then find which ones are set to be fulfilled in the future. If you don't know how to do this, you can find a lot of Internet guidance on the subject if you search for it. Then do the same for any of the other religious writings.
In addition, consider the strength of the Bible in the fact that it is the most published book around, and has wider distribution by far than any other. There is strength in the Bible, no matter how people interpret it on a personal or denominational basis.
