Before I joined a squad I pulled up the roster each day as I logged in and went to the side with the least numbers. I could never remember which side I was one back then they all seemed either green or red.
Now that I am in a squad, I fly rooks, but I never pay any attention to who I am fighting, Bish and Knights look the same to me. Most of the time I have to look at the map and see "Oh, we are fighing the Bish/Knights today".
I think those that say there is a difference, see what they want to see, they all look the same to me.