the amount of things your brain actually processes when watching a football game and analyzing a qb's play is so far beyond what you could spend time writing on a forum, i'm trying to describe it without using the word infinite but it is really the only way to do it justice. that's why people often just refer to the eye test...it encapsulates body language, timing, speed, accuracy, tempo, everything.....
stats are better used when going back and reviewing either someone's entire season of play or entire career of work....then you can find trends, correlations, etc....people throwing out stat lines every week as if they mean anything individually are typically trying to justify a stance they already believe. sometimes less is more with statistics, because we drastically underestimate what we can process with the supercomputers in our heads...
if you need someone to break down what makes aaron rodgers a better qb than andy dalton, then your super computer must be broken