Green Arrow vs Deadshot (which one is the better marksman ?)
Sandman (Wesley Dodds) vs Lex Luthor (the vast astate which blongs to Wesley is kryptonite rich but Wesley doesn't know that, but Lex knows and wants that vast astate... Wesley refuses to sell the astate to Lex cause it has sentimental value for him too so Lex gets angry and makes plots to get the vast astate of Wesley, that plots inculude elimination of Wesley Dodds (!) too so they have this conflict)