non of them :)
In my opinion CR7 is a titan of work and his success thanks to sacrifice, loot of hard work and huge amount of sweat, but on the field he is selfish, arrogant, behave like only he in the team is important and that's why I'm not a big fun of him. From the other side there is Messi (of course he also spent a lot of time in training) is also a great player, but he born with the true talent while CR7 had to work for it.