This is without a doubt important to me, after years of trial and error, I've discovered my ideal is a hybrid around 80 indica and 20 sativa, so pretty much something like a og kush or something, I've found a more sativa dominant strain will mess with my head, I get hyperactive and often get headaches, I can instantly tell if the weed isn't right for me, I think it depends upon you, personally I smoke for pain relief and mainly to switch off, I like the real stoned feeling you get from indica, it's like a warm blanket for your brain, I do have a very active mind so this suits me, of course each strain and type affects us in different ways, I can't say I've really every enjoyed sativa dominant strains but when I have smoke it I find it goes really quickly as it doesn't hit the spot, I'd say I'd be active with sativa as a rule if I had to smoke it .....