I'm not sure I agree with this one as I prefer Tyler Mane's Sabretooth, lack of akting be damned, but I do agree that the akting was superb where Sabretooth was concerned in Origins, especially in comparison to the rest of that movie.
That poor movie will never live #8 down and I think most of us would just as soon forget that #5 ever DID. #2 is one I think all of us do forget until we see it again...and promptly forget it two moments later.
Now, I don't necessarily agree with these choices of actors, but it was something to think about. Many of the characters the penulis felt needed recasting I would agree with, though not necessarily agree with their choice of replacement.