One 115 volt circuit does most everything. Legacy base is added to this. (6) duplex outlet usually does it all, unfortunately some of the wall warts hog space. A couple of Z4000's, also plug-in. Power is the 12 gauge pink cord, yellow cord ends.
One of the problems with more than (1) 115 volt circuit is phasing. Another lengthy discussion not necessary, just use one circuit. IMO, Mike CT