I was curious to see how they compare in the latter stages of CL. Earlier stages, it's close, with Messi having an edge. Messi has outscored Ronaldo in group stage 68 - 63. He's outscored him Rof16 26-23.
But QFs and beyond, Ronaldo has outscored Messi 42 goals (49 matches) - 20 goals (40 matches) . Over double the goals. Messi isn't even fit to shine his boots in this regard. It's ridiculous how far beyond anyone Ronaldo is when it comes to clutch performances in the CL against the best competition.