3 is larger than 2. (until our mighty leaders will change the rules ,at least)
So why would a 3 way not be better? Why would they bother with 3 way?
I think in small spaces you may not benefit from 3-way design, but overall, sure, 3 way should be better, when it's not a cheap 3 way vs a quality 2 way..
I don't know what you mean by full audio spectrum? I would go with the Totem from these three, based on the data. Not that I know anything about speakers in 18K price range