Schumi had been World Champion for 7 times OUT of 17 years - i.e 42% - Success Ratio. Federer has been World No 1 for Six years out of THIRTEEN professional years. Success Ratio is 47%, Federer is Slightly Ahead. Both are very dominant. However, NONE OF THEM Proved Majority by achieving 51% Success Rate to be truly called " RULER " !!!