What would be the cleanest and most stable rom?

Hi,

I still have the original factory rom in my tab s SM-T805. And now, it is already high time to change it.
I checked that there is a very good thread about how to root it (thanks!).

Could you recomend me a ROM? I am after this requirements:
- Clean (without samsung's and others' crap)
- Stable
- Without unnecessary extra features that can make it slow. I just would like to be able to use "multiwindow" with almost any app.

Thanks!

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