Also, the the point about which interpretation of the OT is superior, I say it has to be the Jewish interpretation. Think about it for a second. What is the OT about--the history of a people--the Jewish people. Now tell me, how would some one that does not live in according to their ways, experience their culture, or face the hardships the Jews face become an expert over their text. The outsider don't!
Simply put--If you want the most correct interpretation of the OT, seek a Rabbi. If you want the most correct interpretation of the NT, seek a Priest.