"Which version of TOS is canon?" The one that's sanctioned.
Which one do I personally prefer? The un-remastered version.
There are some parts of the remastered version I like but, overall, the so-so mid-'00s CGI doesn't do anything for me. It's neither retro nor cutting-edge. Plus some of it looks too cartoonish. Then there are some liberties they took with the new mattes and effects shots that I liked and some that I didn't. Overall, my impression of it was very mixed. And when looking at that type of situation overall, I prefer to just stick with the original version.
Which one do I personally prefer? The un-remastered version.
There are some parts of the remastered version I like but, overall, the so-so mid-'00s CGI doesn't do anything for me. It's neither retro nor cutting-edge. Plus some of it looks too cartoonish. Then there are some liberties they took with the new mattes and effects shots that I liked and some that I didn't. Overall, my impression of it was very mixed. And when looking at that type of situation overall, I prefer to just stick with the original version.