In football conversations usually arises the discussion over who is better… if Leo Messi or Cristiano Ronaldo. Any Google search yields hundreds of results on “Messi vs Ronaldo” or “Cristiano Ronaldo vs Messi”. Assuming that we will always make a subjective analysis, based on our personal preferences, I have made this comparison, as a statistic, rigorous and totally objective analysis, in which I will confront their individual and collective achievements. I have incorporated an aspect that many people apply: the comparison of the two while Cristiano Ronaldo played for Real Madrid (2009 to 2018). We also compare their international careers, as well as their performance in the main european club competition, UEFA Champions League.