I thougth we were talking about dj's, not livesets?
Well as the above its all about personal preferences, but for me I'll take a dj set over a live one any day.
Dj's got more material to work with since they are not confined to play only their own music.
That for me makes it a lot more interesting. Then again there are not that many artist that I find it interesting to hear playing their own music for an hour or two.
However I find that there are ofcourse exceptions like KoxBox, Total Eclipse, HAllucinogen, Juno reactor etc.
Peace