Earnest, I understand that you are defending Reniaa's right to believe what she feels is right, and I doubt anyone on here would try to deny her that right. The bigger question on this thread has to do with the authority that the WTBTS claims as theirs uniquely. You use Abraham as an example and ask why was he chosen? Unlike the WTBTS, the bible very specifically identifies Abraham as God's friend...by name. The fact that his unique status as God's friend is not self-proclaimed is enough to differentiate him from the WTBTS. In addition, Jesus' lineage can very clearly be traced back to Abraham without need for "interpretation" or change in understanding as to how that can be shown.
The line of reasoning that since JW's have the least number of incorrect teachings is a red herring as a means of accepting their claims. It would be like saying that this glass of water contained the least amount of poison as compared to other glasses of water...the fact remains that it is still poison! The reality is that ALL religions are imperfect, so it is more important to look at salvation issues (if you believe in that) rather than the typical legalistic approach of this that or the other...do we really think that Jesus woud have condemned someone for having a beard, not wearing a tie, saying "good luck" or the many other other offenses that JW's will discipline over.
Believing is one thing...being an apologist without using your own rational thought is disingenuous. I think that is why most people here are frustrated with Reniaa...not because she believes differently than they do.