I couldn't compare to any of those as I don't have access to them. The only reliance digital near my house has the p8 series only in stock. So I could compare only with that.
The picture quality is good. Black levels are good for me but then again I have never used any high-end TV, so can't be sure if it's the best. The only complaint I have is the remote. It feels like cheap plastic. However, when you register the device in onelplus site, they ship a remote free(49rs shipping charge). That remote looks sturdy. Will know for sure once I get it.
Watching our planet series in this TV gives me goosebumps every time
The TV is super slim and looks posh. I know there was a lot of reviews commenting on how reflective the panel is but I didn't feel the same. I don't have any light that is behind me while watching TV though but I do have 2 tube lights around but doesn't affect the viewing experience.
Wall mount doesnt come with the TV and I read in reviews that amazon charges 500 for mount durng installation. I called up oneplus for installation as amazon doesnt service my pincode. They said wall mount will be free for me.