Well these arguments always lead to a dead end. You can't be sure about something like this, there are so many things to consider, and something you consider relevant is not nessecairly relevant to someone else. The thing is that there's no black or white, if u know what I mean. Its like when fighting over CR7 vs. Messi.. its endless. You can say Messi scored more, you can say Ronaldo is more physical, you can say Messi can't do without Xavi and Iniesta, you can say Ronaldo sucks in Portugal, you can say Messi sucks in Argentina, you can say Ronaldo has a better shot, you can say Messi has better accuracy.... it's fucking ENDLESS.