My list of favourite WordPress Themes is compiled from experience with each of these.  Below the Favourite list I also list some not so favourite themes that I have worked with.

Favourate WordPress Theme

Theme Source Price Published Sales Editors Plugins Ease of Use   My Rating
Avada Themeforest.net $60 300,000         5
Kallyas               3
Divi               4
Flatsome               4
Thrive                
TwentSeventeen                
TwentyTen                
TwentyFifteen