I think it would be awesome if we could choose different standing positions. That way every single marauder, etc doesn't look the exact same while standing.
I've always wanted to be a guardian. It is because they are Jedi that use the traditional single lightsaber, but when the guardian runs he keeps his lightsaber up like he's holding an umbrella or something. Its a cool standing position but looks silly, in my opinion, when he runs.
I think it would add another way to personalize the character how you want. This is what i would like to see, so that one day i could make a guardian instead of a goody-good sith that uses a blue lightsaber.