Richie McCaw

New Zealand's flanker captained the All Blacks to back-to-back World Cups, earned 148 caps, and played the breakdown with a ferocity and intelligence that redefined the openside role entirely. Outshining even #2 Jonah Lomu's impact through defensive mastery, McCaw won 87% of his Test matches — a win rate higher than the average top-tier flanker's 65%.