I only ever use unbleached flour. Why use something that has been "bleached"? I've read that there is even less nutritional value in bleached vs. unbleached. I know that not everyone can afford to but I only use King Arthur Flour both the unbleach AP and the new White Whole Wheat (this is a hybrid wheat). I usually mix 2/3 AP and 1/3 WWW in all my recipes including sweets. DH loves the nuttier taste and it is much lighter in texture than traditional Whole Wheat flours. Take a look at their website
www.kingarthurflour.com I buy the flour in my local supermarket.