Shorty gives you less coverage so if you hit something at the corners it could be bad both for your Jeep and for the item/living thing that gets hit and possibly pulled under the tire. The plastic ends of the stock bumper are VERY sturdy and can push most everyday hits away from the tire and fender. A shorty takes this away.
To be honest, a mid-width isn't much better...
There could also be insurance concerns. If you hit something and you have a smart insurance adjuster, they may say that some of the damage would not have occurred with a full width or stock bumper. They'd be right, and you may be out some money.
So with all that being said, I hate the idea of extra weight so I went with a stubby. Nice and small. for the LOD armor lite, there is something about the mid-width that doesn't look right so I say you should go for the stubby.
I guess mid-widths just don't line up right. Too long for the grill and too short for the fenders.
Anyways, have fun!