Personally, I'm one of the many SW fans who prefers "old" over "young".
I'm aware of why George made this change in ROTJ, however, I miss "old"'s warm, loving smile.
Especially in the SE release with the new music, seeing "old" Anakin and hearing the choir.
I also shed some tears as a child a number of times, and felt that this was a fitting end to the trilogy. (Or the saga for that matter)
All in all, I just feel that Sebastian Shaw is the true Anakin ghost in ROTJ.