Please stop killing the earth and get rechargable batteries. There is almost no reason to run standard alkalines anymore, especially for AA batts. If you needed 9v's, I might understand, but AA's are so well done as the rechargables.
As far as leakage is concerned, it's a problem with all Alkaline type batteries. It's not so much a matter of if, but when and I would assume that off-brand batteries are more likely to leak sooner, especially the really cheap variants.