I suspect that a daily score-sheet would be a bit too volatile - and would also act slightly strangely due to different time zones (i.e. when people actually post vs the UTC day).
However, I'd be in favour of a weekly or monthly "league" - I'd find that interesting, certainly. It's been suggested before, however, and the tag stats were put in place partly as an alternative. I don't remember Jeff being particularly against it, but I don't think he was overly wild about the idea either. At the time, I think the overall leaders were much the same as the "recent history" leaders - but that may well have changed since the idea was originally suggested.
Jeff, care to run some tests and see whether it's actually any more interesting than just being a copy of the first page? (The "no tag" stats page gives the last month, so we can all see that. That only shows votes rather than rep though.)