If I'm right and the Jehovah's Witnesses are wrong, I've left a controlling, maniuplative sham of a religion. I no longer worship a god who is (at best) disinterested in me. I no longer close my eyes to perfectly logical information because it's not printed by the Watchtower. I don't alientate friends, family, and the rest of society by being willing to accept the benefits of their beliefs but unwilling to participate in the systems that provide said benefits.
If I'm wrong and the Jehovah's Witnesses are right, then I'll be dead. I had the chance at eternal life and threw it away. There's no hell, and I have no soul, so for all intensive purposes I'll be "sleeping" for the rest of eternity. I'd miss out on living in a paradise on Earth, free from sickness and death, filled with people who've never really liked me anyway. I'd have a pet lion, but I would not have all the people for whom I care and who care for me.
I am convinced that I win either way. If the best "doom" you can come up with is my inevitable death, then bring it.