I think there are a few ways to answer this, state side:
The Money crop, right now seems to be Girl Scout Cookies that you can sell lbs for a 1000+$ more than just about any other strain makes up for it's lower yields. Every few years this changes, I remember when it was purple urkle and train wreck which filled the $ maker slot. This seems to change every few years due to supply/demand.
The Yield crop, there is no MAX yielder as every grow style does well with different genetics. If you are looking for consistent above average yeilders Green Crack and Blue Dream.
The Flavor crop, This is the awesome tastes your looking for. BlueBerry, Girl Scout Cookies, OG.
There's more in all categories, rarely do you get the plant that fills all criteria.