/cgl/ - Cosplay & EGL

I'm wondering what looks better for cosplaying characters with ponytails- a basic wig base with a ponytail clip, or one that's actually styled in an updo? I'm trying to decide between Purple Plum's Hibiki and Yoko.
Also, I'd really appreciate any tips for making the hairline look more natural. I already tried to make my own with a glued hairline but it was a disaster and I'm afraid I can't afford to destroy another wig if I try and fail at that again.