I have tried all of them and not really encountered anything that sounds like a decent Grand Piano?
Perhaps the German Grand tweaked with the "Acoustic Concert Hall" tweaked up to 80% wet, plus mic setup "under lid", although I am sure there are other tweaks that would make it sounds better, perhaps some reverb.
Has anyone found any settings to make Piano sounds really decent?
BTW I use Acoustica Mixcraft and their built-in offering "Pianissimo Concert Hall Grand" sounds good.