My first little flock was four hens, including an RIR. Ginger Rogers wasn't overly aggressive; in fact, she was submissive to the Buff Orpington, got along fine with the Barred Rock and didn't even bully the little Sicilian Buttercup. Ginger was a great layer, stood up well to winter -- and was quite the dancer!
Sounds like you got a good girl, too.
Sounds like you got a good girl, too.