From my experience at Blues events, most of the experienced DJ's have such a diverse collection that it is a whole new game every time you hear them play. I get tired of some of my own stuff
(after all, I only have 5 compilation CDs
) but everyone else seems to like what I play. So I think as long as we all establish our own identity, it's a new day everytime we see each other.
In my opinion, it's usually the newer DJ's who are still growing their collection that seem to play the overplayed songs. And I don't really have a grudge on them because of it.
However, that said, I would definitely like to hear more Blues music at a Blues events than Pop music. Occasional Pop songs are fine, I'm guilty of that myself (Summertime by Will Smith being one of them, it's not even bluesy, I just think it's FUN) but just keep the number to a minimum.