White Widow x Big Bud seems to be a favorite by many. Its the most diverse that I can think of. It could be considered medical, also with that note, its great for pain, and or depression too.
However the quality is very A+ but the yield is far greater then anything I have seen. Could something yield more? Sure, but but not by much. I also found this strain very very easy to grow;; does well with all conditions, It also did well with SCROG too. Responded well to supercropping and topping, its a all around plant that I would suggest you try because its cheap for fem seeds, the product is great, the yield is magnificent.
There are to many strains out on the market, but just to name a few that yield well would be; WWxBB, THC Bomb, Critical Kush, Pineapple Kush (Not nearly as well as the listed above) but again I would suggest you try WWxBB because it did very well for me.