This is the kind of thing I'd defer to Tom's Hardware or maybe Ars Technica or something for a comprehensive comparison, but I've never gone wrong in buying Sandisk products (except when in Asia, where 90% of the devices, even at "real" stores, were counterfeit with less than advertised storage capacity; I ended up having a friend buy real products from Amazon and bring them to me when she flew in).
This is the kind of thing I'd defer to Tom's Hardware or maybe Ars Technica or something for a comprehensive comparison, but I've never gone wrong in buying Sandisk products (except when in Asia, where 90% of the devices, even at "real" stores, were counterfeit with less than advertised storage capacity; I ended up having a friend buy real products from Amazon and bring them to me when she flew in).