Ott? Yup..
And the Waltzes from 2008
Brendel? yup. But mostly vinyl, so it has been a while. Also I don't remember him recording Chopin that much (Polonaises). I remember a pile of Beethoven and Schubert though.
Argerich? Other stuff - but not Chopin. I will look for it. I know her DG stuff is respected.
If I had a go-to, to use your term. It would probably be Artur:
I really liked the 11 CD set and listened to it a lot.
Also there are others as you said - Kissin, Perahia, Horowitz, etc
That said, I don't listen to Chopin that often. I think he was great, and the dedication to piano was incredible. Just sometimes it is a bit 'too many notes' for me.
But if you have album recommendations, please post, I would be happy to add them to my queue if they are available.