Most Helpful Guy
In general I don't think so because two perfectionists may have a different vision of perfect whereas one person to just ballpark something while the other tweaks it to perfection will result in good times.
Most Helpful Girl
Two perfectionists don't work. They keep trying to correct each other. One easy going and one perfectionist is good because the easy going person lets them fix stuff and they don't mind when the perfectionist freaks out about something.