There is constant talk among MMA fans about who is the "greatest of all time."
In reality, there isn't any one single answer. Weighing things like dominance, technical pioneering, title victories and winning streaks means that there will always and forever be multiple viable answers to any questions about the MMA GOAT. Couple that with the fact that most of the candidates are still actively competing and the goal posts aren't just moving on this argument, but they're flying around.
Still, fighters can find their claims strengthened or contested based on any number of factors.