I prefer original hardware on a CRT for most games, but for games that originally had bad performance, an emulator on a CRT at original resolution works well too.

Unless I play late at night. I try to be kind to my neighbors, so I don’t use either of my CRTs because of their flyback transformer noise. I don’t know if they can hear it through the walls or windows, but I don’t want to take the chance and disturb them. Its not that important to me.