ello there m8.. well i have not grown either strain.. but i have grown northenlightsxbigbud.. very easy grow... ive allso read numerous times that big bud is very big yeilding plant and very easy to grow.. i have allso heard that jack herer is a bastard of a grow.. but that wouldnt put me off growing it if i wanted to.. as its surposed to be a killer smoke.. and i love a challenge... happy growing and good luck brother:thumbsup: