Hi Magnum ,
I have to say that the early church fathers were divided on this point. Justin Martyr thought that he [the spirit] was Samuel, whereas Tertullian held the Watchtower's view. Nevertheless, Tertullian's view was weakly argued like the Watctower.
I am currently not a Bible believer, however, I like to do some "textual criticism". So, I currently admit that the Bible teaches contradictory views, because each writer had his own agenda.
Regards,
opus