Honestly, I still think the SD is by far the superior choice on Lucario. What do you eactly switch in front of a +2 Lucario if you don't have Jellicent/Slowbro? The standard Physicall wall like Skarmory or Forretress? Forretress can't do anything to it unless it has Earthquake but nobody uses Earthquake on Forretress. Skarmory can phaze it but you still take like 80-70 from CC anyways.
SD Lucario is one of the biggest threats in the metagame right now because you can bring it on a Choice locked-resist and then start with the set-up and sweep.