Flash??? Flash (Wally west) could beat both of there (Batman's and superman's) strongest versions in les than time coul react. Flash can phase true superman scull and crush his brain or just stop phasing inside. His brain. Inf mas punch kills batman even if he's immortal. Flash was always my favourite. But I hate people always looking away when he does something that is so broken and can solo most of the fiction. But you like. Nah he week.