Pre2k would be the blueberry to own, I know a cat with a pre2k cut (sativa) it's hands down the best it's that old school blueberry folks remember. DJ lost his Sativa male that he originally bred with, if you can find a pre2k cut snag it, everything since than is very indica, I got a indica djbb in flower now.
Check out the Berry White BX by Green Beanz breeder Lemonhoko it uses the pre2k blueberry crossed with ceres White Indica, sweet berry smell and taste amazing strain, nothing but good reviews from what I've seen.