Best I smoked was some stuff that was litterally white, not kinda white like white widow, but actually white cause it was so crystalized. Was from LA in the early 90s, a super stong indica. Other then that there was the time I went to amsterdam in 2001 and googled this strain that was supposed to be the holy grail of sativa that was only sold at one outta the way coffee shop. I think it was Neville's Haze but I ain't sure. That stuff was so heady that it was almost like trippin and so strong that a tiny hit had you going for three or four hours.