Here are some all time career goals and appearance record of both players and how they scored in league, champions league and other domestic cups.
Its clear from the graphic above that Lionel Messi has slightly better goal to game ratio with him taking 0.83 matches to score 1 goal while Ronaldo ratio is not bad either which is around 0.68.
If we talk about their overall Champions League performance again its pretty similar apart from Messi have superior goal ration of 0.86 compared to Ronaldo’s 0.63. Messi is now the all time highest goal scorer in champions league history while Ronaldo is second with 72 goals to his name.
Team & Individual Honors: Below is the complete list of honors won by both Ronaldo and Messi since 2004. Included all major trophies and individual awards 
They both are great, Messi is better at building up attacks brining his team mates into play and can find that killer pass which can split even the water tight defences of opposition. On the other hand we have Cristiano Ronaldo who is more athletic, makes solo runs on the wings can score all type of goals.
Ronaldo is a better professional, he had talent but he made it even better with his dedication to improve which we have been witnessing year after year. Messi on the other hand has a natural gift of balance and control over the football, he can turn and twist accelerate with the ball at his feet better than anyone. So before we decide who is a better player we take a look at the over all record of both players starting with the all time goal and game statistics.