I'm not a fan of comparisons that don't actually provide an answer as to which excels above the other, and leaves it as a "depends on what you want". one is always better.
Although I didn't give a precise answer on a clear winner in this video which wasn't my objective, I did, however, point out some of the performance differences between the two models. For example, the S90C uses a QD OLED panel and has a higher peak brightness output over the C3 which can lead to better overall picture quality. That being said, I do respect your opinion. Thanks for your comment.