After reading the good reviews I ordered again the K2 Kind of Blue. Spend more time listening and it is better than the Legacy 50 year remaster. I was wrong in my first posting. Matching output levels are important. The K2 wins.
One other edition that hasn't yet been mentioned is the re-equalized version put forth by Pristine Audio. Their process seems interesting, but, as yet, I haven't heard it. More info at:
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