Hey D.,
The generic brand for Toys R Us and Babies R Us and Walmart have been great. I just don't live close enough to those stores to get any of them regularly. If you do, they are cheaper than the brand names. My absolute favorite disposable diapers are Huggies. I have used them with both of my kids. Some of the worst diapers have been generic brands I've gotten at CVS stores or Roses. Although they worked with my first child, Luvs didn't hold up with my son. Target and Whole Foods brands also didn't make my cut.
Hope this is helpful. Also, check out my website about parenting http://www.noblemother.com