1. Korosensei:
Limited Weather Manip, i'm neutral but i think it is more like Air Manip to me
Reactive Power Level: no; Accelerated Development: i think yes
Adaption: neutral, Creation: no
2. Karma:
Information Analysis is also out of the window, because it is a hax require you too literally analysis people stats, hax/abilities. Copy normal martial art hardly grant Power Mimicry. Other Information Analysis scan i'm neutral, i think it is just minor Information Analysis rather than solid/full-blow
3. God of Death:
Information Analysis
Limited perception manipulation: this is so vague to me, so i'm neutral
Resistance to mind reading: No, Karasuma "reading his mind" is trying figure out what he thinking/scheming through normal mean, mind reading is when you use special/supernatural power to read mind
4. Gakuho:
Why Mind Manip still there, it is already get cover on his page, and like what i said with Koro case, Mind Manip hax require use to use special/supernatural power, not influencing other people through talking, that is Social Influencing
Information Analysis and Power Mimicry: same reason with Karma, and he will not get either of the two
Reactive Power Level: no; Accelerated Development: i think yes
5. Itona:
Should be Gifted likely higher
6. Nagisa:
Oke with Genius in Assassination, but Academically he should be High
7. Irina:
No, she should be High or at best Gifted, not Genius, knowing 10 languague and play different instrumental can be archieved through long time training, genius is when you could learn complex thing in a very short time
Well this is my reason, there could be more after i read more thoroughly