Darth Editous said:
I don't know if I've mentioned this before, but I've recently thought that Ben says "Annie was a good friend." in ANH - not "and he" as I thought before - which would make ANH the first mention of Skywalker Sr's (nick)name. You could argue it was poorly pronounced, but it was Alec Guiness!
DE
I don't recall Obi-Wan ever referring to Anakin as 'Annie'.
That was Padmé's thing. (And to lesser extent; *shudders* Jar-Jar)