Of these three, I would choose OBS Studio, because it receives important updates and innovations such as improved NVENC performance or an improved audio mixer before the others. Also, I'm working on my fork of OBS Studio. It is called OBS Plus. It will keep all the benefits of OBS Studio, but at the same time, I plan to add some improvements and fixes from myself. Now my fork is in the very early stage of development. If you are interested, I recommend you try it after the release, maybe it will suit you.