I think 4 player chess would be more balanced if blue and greens queens and kings were switched.
[StartFen4 "R-0,0,0,0-1,1,1,1-1,1,1,1-0,0,0,0-0-3,yR,yN,yB,yK,yQ,yB,yN,yR,3/3,yP,yP,yP,yP,yP,yP,yP,yP,3/14/bR,bP,10,gP,gR/bN,bP,10,gP,gN/bB,bP,10,gP,gB/bQ,bP,10,gP,gK/bK,bP,10,gP,gQ/bB,bP,10,gP,gB/bN,bP,10,gP,gN/bR,bP,10,gP,gR/14/3,rP,rP,rP,rP,rP,rP,rP,rP,3/3,rR,rN,rB,rQ,rK,rB,rN,rR,3"][Variant "Teams"][RuleVariants "EnPassant"][CurrentMove "0"]