Which is best for home defense?
hmmm...letsee...depends if the walls of the home are six or eight inch thick concrete walls or standard stick framing and/or the stand off distance from the home needing to be defended. It is technically possible to defend ones home from 1000 yards out. I would think either of the three would suffice on soft targets out to and somewhat exceeding 1K yards. If you're having to deal with concrete walls pick the RUM and scooch up a little closer.
Considering defense from within the confines of said humble abode...I anxiously await your video(preferably High Definition digital!) documenting your findings.