As a huge RE4 fan who knows a bit about the RE universe, I went with Subz/Scorpz and am confident. Leon/Ada isn't really much of a rivalry (although they do have a cool relationship) and Ada is very weak. The MK ninjas both have good/decent strength and together, are one of the most iconic rivalries ever. It's also a day match, something I haven't seen anyone touch on. RE4 has better day trends than old school RE, but it's still a night game. MK came from America and is strongest here. Advantage ninjas. Game ninjas imo.
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