mass strains help

Hey guys I was wondering what strain you would you recommend for mass, I was thinking orange bud, m-39, chemo, or the purps anyone have experience with these strains outdoors
 
depends in your lattitude. If you have a med type climate you can grow pretty much anything but in northern climbs like uk, you have to choose a little more for mold resistence. approx lat would help?
 
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