I think winning stuff in different countries is more exciting, so in my opinion his career is better.Has he though?
In terms of individual accolades collected during their careers, Messi has been miles ahead and it's not even a debate. This includes accolades Ronaldo won in England and Italy.
Messi . Ronaldo . Ballon D'or 6 5 Club level European golden shoe 6 4 League top scorer 7 4 League player of the year 9 4 Uefa Player of the year 3 4 International World cup golden ball 1 0 Copa America/Euro player of the tournament 1 0
In terms of trophies won as part of the team, Ronaldo has won an international trophy and one more champions league however Messi has a lot more cups and League titles
Messi Ronaldo League titles 10 7 Champions leagues 4 5 Copa del Rey/Fa cups/Coppa Italia 6 3 Copa America/Euros 0 1 Fifa Club world cup 3 3 Uefa Super cup 3 2