If you want them all barred or cuckoo, you'd have a BR roo over Ameraucana hen. That way you can be pretty well assured the daughters will lay green eggs since Amer lay blue and BRs brown. If you have an EE, the egg color may not be as certain. If you did EE over BR hen you would get barred males and mostly solid females, however I got a couple of spangled sisters, now owned by rooster-red, from an EE roo over BR hen.
If you want the possibility of a blue barred, you need to start with a blue (or splash?) hen to go with the BR roo. You can still get black barred, too, since blue is genetically black anyway.