Reply to Mixtrack pro or Ddj ergo or traktor kontrol s2 or others?

Planning to learn Dj and mixing, I have tried to play around with Vdj and I have grown to like it. Easy access to hot cues and effects would be best for my type of controller, scratching would be best too. Hmm which controller would be recommended? My budget is about $500 USD. I may be learning some scratching too. Heard that the Numark mixtrack pro has a sensitive jog wheel and is also good for professional Djs even though it is cheaper.