Just great kush in general, taste/potency/relaxation/cerebral.. like the best haha its just that those two strains are hard to compete, still looking for more answers upon this topic though to get an overall answer. And ive tried jack herer GreenDream in my old days and i must say, creativity and laughness i got off it was killer but blueberry i remember vividly that it tasted perfection but high was just as good as well... As years pass by i have no idea how these strains are anymore, scratches your head huh? The best of the best m8 !do u need bud to function more or chill more? i personally dont think jack is all that, but im not big on sativas really. my first blue widow just cracked too. im excited for the blueberry genetics in it!