I just took the P320 Armorers course offered at the 2017 ILEETA conference by Sig. My impression of the system is that it is more complicated then the Glock by a large margin HOWEVER the functionality of 2 of the safety functions of the P320 necessitate this, along with the modular aspect.
The 2 safety functions that make it have more small parts are the magazine safety and takedown safety, which makes the gun much safer from a LE department aspect.
Does this means it beats out the glock...it depends on what you are looking for.