lucy24 - 11:34 pm on Sep 22, 2012 (gmt 0)

Do you mean just the rule without a condition?

Never put something into a condition when you can put it into the Rule itself.

Conceptually it's like this:

Rule {somestuff} {do what rule says}
Condition {"somestuff" includes "xyz"}

versus

Ruls {xyz} {do what rule says}