It´s odd, I believe that one do it better with the one who loves, is my case at least. It is your decision, but for me the best to do is use the one you love more, fight and train hard to get better with him/her so in the end you can get both things.
Ive always mained Short Shield and Short Sword since SCII and I like the chars. But I have other chars I like a lot like Nightmare, Yung Seung (He is in IV tho).