I think my dream power supply is a collaboration by Keysight, Keithley, and R&S. With all of the best from each company and none of their individual shortcomings.
Keithley: metering, graphing, logging, and measurement tools
Keysight: electronic parallel and serial, low noise, desktop software, support structure
R&S: hard-off power button, front panel sense, identical rails, web based control
Sure there is a ton of things I'm leaving out in my list. Hopefully the new models Keysight has coming out will bring some additional firmware enhancements that all the models can benefit from.