Talk:Arisu Sakayanagi/@comment-26544002-20171009090115/@comment-28994028-20171009115256

''Comparing people's intelligence is like comparing a Mac with other high-end laptop models that run on Windows. Some have the advantage of great specs (on paper), but it's usually the Mac that finishes the race first.''

Of course, I won't be comparing their intelligence since your question specifies smart, and intelligent, mainly associated with IQ, is not similar. Here's my superficial analysis:

As detailed in their articles, Arisu and Kohei have different mindsets, and regardless of your IQ, you can still make the wrong decision with a bad thinking pattern. Kohei's mindset is rather conservative, which is the opposite of Arisu's, who is more open to changes and new ideas (keep in mind that these details are taken from the official anime site, not directly from the LN, but then again I don't read it so I dunno either).

Then, what is of their mindsets? So far we haven't seen much of Arisu's role in the anime as she was to be introduced in Vol 5. During the Deserted Island arc, she remained on the cruise ship due to her bad health condition, so minus 30pt for Class A. However, she's the one who had been secretly leeching off Kohei faction's influence by having Masayoshi on their boat as a spy to screw up their plan. So Class A experienced heavy loss in points.

Now for Kohei the bald, as a result of his conservativeness, he refused to learn the identity of class B's leader, which can be a game changer decision for class A, or not. Also, he failed to recognize Arisu's interference, probably because he presumed her being on the ship prevents his plan from being sabotaged.

What else? Ah, Arisu looks smart while Kohei instead looks egotistical.

Conclusion? Arisu is smarter. (probably)