JW attitude of “we only are right, and we will shun all those who disagree with me” is based on the Bible. Interestingly, for almost everything in the Bible, one can see an earlier parallel existing outside the Bible, in the pagan world. (http://ggreenberg.tripod.com/ancientne/101rev.html) (http://www.religioustolerance.org/chr_jcpa1.htm)
Hence truth is that every religion—including JWs—shares a portion of the truth!
Though some may claim resurrection is unique to the Bible (very few know that resurrection too is of pagan origin), even this has its problem. Growth and decay is the law of nature which God would not violate. Even if He does resurrect somebody, he will die anyway at the completion of his life-span. Hence what does God gain by resurrecting someone? Bible says Jesus resurrected some people (Matthew 9:25; Luke 7:13-15; John 11:43-44) He too did not gain anything from it as none of those resurrected one came for preaching work during or after Jesus’s life-time.