Board Thread:Theories and Speculation/@comment-26358288-20150630121218/@comment-3965545-20150630220832

The chapter where he admonished Danzo for underestimating Sasuke's Genjutsu he says his Genjutsu are weak, but he places them with good timing. In that chapter he pretty much says Itachi is better than Sasuke with Genjutsu, so does Danzo.