I think it's been discussed many times before.
I read the comments about this video on YT, and the consensus seems to be "show, not tell", and I agree with them. I personally don't like ranking in general, I tend to have my own ranking in tiers (1-Reed, Doom, Valeria 2- Stark, Pym, Banner, T'Challa 3- Beast, Cho, Blue Marvel, Peter Parker. Yes I am aware there's only one female on the list. No it doesn't bother me. Yes I am female.)
For those who don't want to watch the entire video, this is supposedly Marvel's official ranking.
10. T'Challa
9. Amadeus Cho
8. Henry McCoy
7. Riri Williams
6. Hank Pym
5. Valeria Richards
4. Bruce Banner
3. Tony Stark
2. Reed Richards
1. Lunella Lafayette
T'Challa should definitely be higher IMO, as should Valeria. Pym and Banner should switch places (but that may just be because I have read more Pym than Banner stories) Moongirl and Riri... we've been told they're smart, but that's about it. I've seen Nadia Pym do more smart things than Riri and Moon Girl, and yet she's not on the list (I mean, if you want to throw in new characters that have next to no credentials and acheivements). And where is Doom in all this?
Technically, this is canon. I disagree but hey, if Marvel says so...