Kibito VS 100% Freeza

[Captain Cadaver]

Why? Cell is awesome. It's the natural progression of Earth's fight against evil isn't it? Goku and Co. have conquered the greatest threat to Earth ever and have come out victorious. Now, an evil scientist combines Earth's greatest fighters and out comes this super powerful being who is the best at everything on a worldly level. That's natural progression.

From the perspective of a threat, I agree. From a character perspective, however, Cell was little more than previous cast members' personalities in a new body with nothing interesting done with them. 1st form Cell is little different from Piccolo, 2nd form Cell is just Vegeta. Perfect Cell started off interesting due to seemingly being a balance of Goku and Freeza's nature, but just became a far more boring Freeza once Gohan started stomping him.

Cell's character could be interesting if a good portion of the plot was given to him having an internal struggle and existentional crisis over the many characters that make up his being. However, tying him concisely into the plot would still be a major issue, as not only is his canon backstory an example of how there's practically no coherent laws to DB's time travel logic, but even a present version of him would seem like an asspull when considering how improbable it was that the cast went through so many battles without noticing a Spy Robot in the distance.