The cheapest will usually squeal the least. The most expensive will come with hardware or a better warranty but higher quality linings are often harder and might tend to squeal.
Keep in mind that the manufacturers spend a ton of time developing a brake system that is balanced front-to-rear for even stopping. One of the variables is the coefficient of friction between the linings and rotors and drums. Brake lining manufacturers go to great lengths to not change that variable. What you can expect is to still have even braking regardless of what the new linings cost.
Some sales points include a lower tendency to make black brake dust on the wheels, lower tendency to squeal, and things like that.
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Thursday, April 21st, 2011 AT 3:02 AM