Judging from the demo (360), I would not give graphics 7.5. It should be at least 8.5, maybe 9. Also, I have never experienced any screen tearing or frame-rate problems as well. I am still on the edge about buying this. The only problem is they say the game is too short (8-10 hours even if you take your time).
If you rate SW unleashed as a 9, im guessing there has to be a lot of games that score higher than 10 in your graphics ratings...