I've yet to try Durban Poison. It simply has not ever been available! It is on my top of the pops search. That said, Jack Herer is a spectacular herb. Lots of yummy woody, piney tastes. I would say that of the Sativas that I have had, my favourite was a batch of Girl Scout Cookies I got my grubby lil' mitts on back in 2014. It was the zippiest head trip, unleashing creativity and energy that I did not know I had. At the time I was doing some professional writing and I was tearing it up, some of the best work I ever did at that job. I know that GSC has a Durban Poison parent. Good and sweet!