We've tried BJ's, Target, Stop and Shop, Walgreens and BRU brand diapers and they all seem to suck. When we we're using Pampers I don't remember having poop leaks.
We recently switched to Kirkland (Costco) and LOVE them. I'd say they're better than pampers for DS, since we had leaks with pampers. We also had luck with Luvs, which aren't generic per se, but are super cheap.
I haven't tried any but I have one friend that loves the Target ones for her little girl and another friend that has used the Sam's club (Member's Mark) for both of her boys.
No complaints on Kroger brand. She uses them at the sitters and they are only 4.50 with a coupon for 40 diapers. We use Huggies for overnight use though.
Re: Have you had any luck with generic brand diapers?
We also use the Costco (Kirkland) brand diapers for both boys with no complaints and no leaks. They're wonderful!
Sara