I have all my switches and the turntable controls on the TMCC/Legacy remotes, I also have the Lionel LCS system on the iPad to control all the switches visually. I have siding power on individual switches placed around the fascia of the layout.
I plan on adding a manual turntable panel with a rotary switch and bridge controls in parallel with the command controls.
FWIW, I don't plan on any "master" control panel with everything on it. While they're impressive looking, I don't think they have the practicality of distributed controls.