The big advantage of the DSLRs is the speed at which they focuscedric wrote: As someone too lazy (and weak) to carry a DSLR around, I've decided to buy a Micro Four-Thirds camera.
What's the best focal length for dance photography?
this is critical if the subject is moving and you are working indoors in poor light
with a DSLR the wider the aperture the faster The camera will focus
and this may be the same with a compact but as far as i can make out, non are as fast as a modern DSLR particularly if you are using continuous focus
I would recommend getting close and going with a 24mm equivalent; you can always crop
My experience of a Four Thirds sensor ( Nikon P7100) is it fine at native ISO, in bright daylight, but hopeless, if you crack up the ISO and try working using unavailable light
