What really made me leave the watchtower (and most religion for that matter) is: How is that going to change your everyday life?
Whether you believe you will go to haven or to a Paradis earth, or that the tribulation is near or far... how is that going to translate in you being a good person?
JWs and other religion put such a strong emphasis on these teachings that they forget that being a Christian is all about showing love to God and one another. If a catholic or a JW or a second day adventist shows love throughout his life, than, why would God condemn that person simply because he was wrong about God's plan?