I voted, How you work the jig. I don't think you have to fish a jig like it is always getting looked at. Meaning, I fish it like a crawdad that's just doing its thing. Sometimes lift it after it hits the bottom and sometimes let it sit and give it slight twitches. The next lift can be the trigger to getting a bite.
As far as colors, I like a little difference between the skirt color and trailer. Black and blue, brown and lighter or darker brown, green the same, you get the picture.
I like to keep a tight line on jigs because it can be a very subtle bite, especially on a long fall like bluff faces. Cast to the face of the bluff and after it hits bottom lift it slightly because the next ledge might be a few feet below. When it falls to the next ledge is usually when the bite comes.
Rattle? You don't need them unless the water is dirty, and if it is you'll need to have a bigger profile.
If you want a fighting profile on your jig, use a craw trailer and rig it so the trailer rides high off the hook. This will put the pinchers up higher and they will give more movement in the water.