I also think it has something to do with your age, knowledge, collection. I used to be one of those pests that looked through Richard's box at Wigan and hung around Curtis at the Mecca. I was often in awe of the records they had. Now as my collection has grown and playlists have diversified, I'm less in awe of DJs. I also don't think a great DJ should have too many cover-ups. I've always seen this as a weakness or an ego-trip rather than a strength. I also think DJs have 'moments' when they are so 'on-form' they shape the scene. Levine at the early Mecca, Searling at Wigan, Dave Thorley at Stafford, Ady at 100 Club in 9ts.
What I would love to see is a clash of playlists from different eras - anyone provide that thread?