First of all, what exactly is DD's "radar sense?" Is it considered a superpower or not? If not, then it may even be something Batman can somewhat mimic using his own finely tuned sense of timing and opponent-awareness (the latter being something every true-master martial artists develops).
Secondly, if the radar sense is some kind of superpower, then it should be considered a weapon. Radar (the real deal) Is a weapon. No, it's not a device to kill or destroy, but it is something that has been used in warfare to give one side an edge over the other. If it were not a weapon, than F-17s would not be sent in to take out radar stations as phase 1 in a war.
Thirdly, what I have not seen mentioned in the above threads (unless I missed it) is that Batman is an expert tactician. He will likely realize very quickly whatever edge DD has over him and take steps to counter it, kinda like what Bullseye did in the movie with the organ pipes. If Bullseye can do something like that and take advantage, you better believe Bat will (notice I said "something like that," which means, kindly hold your movie-isn't-canon response, as I'm using it just as an example).
Listen, I don't have any particular fondness/dislike for either Batman or Daredevil. But seems to me, Batman fights as much with his mind as with his body.
So who wins? Batman 6/10.