My Rating Scheme Ideas

So. I plan on reviewing games (new and retro) soon. And with that I need a rating scheme. With that being said, I think I'm going to use the old GamePro magazine rating scheme. 

That rating scheme is as follows:

Graphics - 0 to 5

Sound - 0 to 5

Control - 0 to 5

Fun Factor - 0 to 5

I'm going to weigh the scores accordingly though, and I think that may help. I'm going to weigh Graphics at 15%, Sound at 15%, Control at 25% and Fun Factor at 45%. I think that is a fair way to evaluate games. I'm also planning on basing sound and graphics on the time period.