I think I'm the first person to think so, but I don't like Anko. In Water, there is already much better options for your 3 drops. Plus, she's a -1 to hand. In Lightning, Anko's a little stupid with Group Lesson pre-rotation, but post-rotation she just isn't worth playing. I know that you can draw a decent amount with Cloak Naruto, but my problem with that is that they are both turn 3, and the earliest I can actually get that off is turn 5, when I would rather play other cards than a mediocre 4/2. Sai is better stated and effectively gets me to my late game cards faster, while Anko is an understated situational draw.
On a side note, all these Utakata type effects are getting a little recessive. :/