This suggestion has probably allready been made.
I believe a better votingsystem than merely picking the best video in a category would be if voters could pick a 1st, 2nd, 3rd... place; with most points going to the 1st place, less to the 2nd and so on. That way a video could win even if it was not placed 1st most often, but when it can unite more points on itself than the other videos.
