Controller can be a genuinely strong option for melee brawl and dive characters in Marvel Rivals, particularly because these heroes rely heavily on cooldown management, positioning, and close-quarters ability chains rather than pinpoint long-range aim. However, the answer is nuanced — while controller excels for certain hero archetypes, competitive high-level play still sees keyboard and mouse (KnM) as the dominant input method overall. Your personal comfort and playstyle should ultimately guide the decision.