Given the discussion on wether to use ABS or not it seems there is a vast difference in how GT5ers set up their brakes. My personal tendency is to go low front/high rear on MR/RR cars because a higher front setting tends to lead to excessive tire wear in the front. Balanced wear means I don't have to pit in longer races because one set of tires is bear; yet I have enough tread on the other set to continue driving.
I also tend to set the balance high to give me the shortest slowing distance so generally you'll see my balance set 5/8, 6/9, 7/9, 6/8; whatever give me good stopping distance and even tire wear.