I'd hazard a guess that true "Zero Negative Feedback Amps with High Power) are not too common. High powered amps without global feedback might be more common, Ayre, Pass and Threshold come to mind, I guess there are others.
IMHO (YMMV, etc.,etc.) judicious use of feedback might be getting more negative feedback (ha!) than is warranted, in fact it might be beneficial.
There are many factors to be considered when choosing an amp, over stating the importance of one or a few factors out of context of the whole might cause one to dismiss some other wise good or even better candidates. But most of us do seem to prioritize things differently and if that's tantamount in deriving your short list, I suppose it's as good as any. It wouldn't be to me.
IMHO (YMMV, etc.,etc.) judicious use of feedback might be getting more negative feedback (ha!) than is warranted, in fact it might be beneficial.
There are many factors to be considered when choosing an amp, over stating the importance of one or a few factors out of context of the whole might cause one to dismiss some other wise good or even better candidates. But most of us do seem to prioritize things differently and if that's tantamount in deriving your short list, I suppose it's as good as any. It wouldn't be to me.