I realise you are trying to set up an objective scoring system but the problem with that is that it treats all games as equal. A reveal from Capcom, for example, is highly unlikely to be as good/well received/as exciting etc. as the latest and greatest flagship title from the big three.
Similarly, a reveal and gameplay for some random, uninspired title trumps a Zelda trailer, for example. Doesn't seem right. It's ultimately going to heavily favour the company with the most to show, rather than necessarily the best to show, although they could be one and the same.
We are constantly told that E3 is all about the spectacle and the excitement so I think there needs to be some way to capture that in your scoring system, if possible. An excitement coeffecient perhaps. :)
