I think the Imperial is fine, but I think the normal one can be adjusted to the color of the Poison Avian Wing?
When Imperial Helms were first released, people want it because of the color, that is why the price and the drop rate of the helm and the Golden Valkyrie Helm is different. If you want the extra status, you can get the Golden Valkryrie Helm. It's supposed to be the helm that matches everything. Look at teal,black,red,pink and white Imps, they are all going to match the Emperium, Sacred Wing, etc.
You surely can notice the difference if you look closely, but you can't do much of that when you are, for example, in WoE or PvP.