lol!!! Multiple holes for the win!!!
As far as the question, the length will make a difference for optimal performance. You will want your sway bar parallel to the ground and links at a 90 degree angle for more efficiency when the car is at rest\leveled. Also the longer the bar is, the "softer" it will be from a torsion and deflection perspective. But realistically we are not talking about corner carving speeds on a Jeep, so focusing on a parallel bar to the ground will do the trick keeping the on road riding firm, and without impacting adversely or stressing the heck out of the sway bar components (bushings, link ends, etc).
I am not a big fan of anti-rock type sway bars (had on a few rigs and my last TJ, and recently I have been running my JK without a sway bar; It takes getting used to, but will probably put disconnects on as my wife hates teh feel when she drives the Jeep