Ive worked with roughly 16 strains in the last 5 years and ill narrow down my choices here.
Indica dominant biggest yielder and awesome intensity would be for me Critical Kush: OG Kush x Critical Mass. They are rated at 750 per sq mt but Ive never know anyone to get breeders stats.
They are vigorous plants, love the nutes. I used X nutrients & Humbolt. 1000W per table, 5 plants in 5 gallons per table, screen of green. 58 days flowering and they are amber and ready to go. Ive been smoking this strin non stop for 2 years and it still makes me happy. I average 3 ounces bone dry per plant working on QP per. I flush weekly, that's the trick to any good yields is weekly flushing then heavy feeding, week by week adjustments.
On a Sativa dominant Id go with Super Lemon Haze, 11 weeks flowering, they do become very tall but if you have the patience this strain will melt your face, literally. Hit 5 onces per plant once but average is 4 ounces per plant grown in screen of green, w-co2 enhancement, same nutes but PH diofferent on sativas compared to indica. Hope this helps,.