Kiting builds are still playable and i find them still viable in group play. It is kinda cheap to get the basic gear for Archon in place and start farming something like MP1.
Archon is mostly used for farming at lower monsterpower, something like MP0-MP4. CM WW is mostly used for doing Uber bosses at higher Monsterpower. You can farm with cm ww, but it's no fun - too much button smashing. Farm whatever you can farm fast, it is not uncommon to see Archon Wizards with 200K+ damage still farming MP1 or even MP0.