Only seen the first 5 episodes of Daredevil. But so far Arrow stomps. Daredevil has consistently struggled against Fisk's standard "Professionals" one on one. Whilst when Arrow struggles one on one it would almost always be against someone hyped up to be exceptionally Uber like Malcolm Merlyn.
Which makes sense because Daredevil has gone for a much more dark, gritty and realistic tone.
But will judge again when I get to the end of the season.
Only watched one episode of Daredevil so far. He seems to be extremely fast and agile, but his hits don't seem to pack nearly as much of a punch as Ollie's does. Ollie can drop most people with a few well placed shots. Matt needs to seriously wail on someone before he puts them down. So would have to give this fight to Arrow, based on what I have seen so far.