Not so much something I want as something I *don't* want: an excess of "does ridiculous feat of speed, gets hit in face by guy who is moving like subjective molasses". Inexperience provides for some leeway, but really, the guy should never get hit by an ordinary human swinging at him, unless his powers aren't working or he doesn't see the guy at all ( and is for whatever reason not moving ).
If you absolutely have to have normal-ish speed opponents challenge him in a direct fight, then write him as having some endurance limits. That way, if you want to have such a fight, all you need to do is write into the plot something to tire him out first, like a set of bombs all over the city that he needs to stop in seconds. Bam, you now have a Flash whose reflexes are comparatively crappy until he has a chance to rest.
