Xapferey

Truly one of the best GMs I've ever had, and I've been playing D&D for about 31 years now. Easily in the top 3 of GMs I've ever encountered as a player, he rewards good ideas, and if you convince him with role-play, you won't have to make an ability check.

Kiefer is a great DM as he focuses on including all his players. He is thorough in his world building and how characters and their backstories fit into it. He is thorough in his rules and is very clear on what is/isn't allowed in both game rules and player/character interactions.