Thanks Kev
As far as Im concerned the only "rules" I like to see are this:
Express your rating in a coherant, readable paragraph.
Make it a paragraph or 2, not a sentence or 2.
Try to tell me what you liked and why, and what you didnt like and why.
Pretty dang simple. If you ask me, I think any community would benefit from people rating like THAT instead of these huge elaborate rating scales and systems which dont do much for the reader/builder. Just tell me what you liked/disliked and why. Then make it readable and supply me with more than 20 seconds of information.