Jehovah's Witness claim only 144,000 total can go to heaven. For a group that claims 8ish million members, that's a small percentage of even themselves that can make it.
Nah. One of the very few things to the JW's credit, they don't believe in Hell. The worthy will be resurrected on an earth-turned-paradise, where they live as subjects of the 144,000, while the rest simply cease to exist.