I selected "Classical Theravada" based on some sources (Bhikkhu Bōdhi, Ñyānapōnika Thera, Rērukāne Chandavimala Thera, Viṣuddhimagga based material, etc) - and "Suttanta" (Thanissaro Bhikkhu, Katukurundē Ñānānanda Thera), also "Sri Lankan" (all of the above sources except for Thanissaro Bhikkhu), and capped it all off with "Theravada in general".
In future I plan to read more matertial from the many wonderful Burmese Sayādaw's so then I'd have to include "Burmese" as well.
"Delighting in existence, O monks, are gods and men; they are attached to existence, they revel in existence. When the Dhamma for the cessation of existence is being preached to them, their minds do not leap towards it, do not get pleased with it, do not get settled in it, do not find confidence in it. That is how, monks, some lag behind."
- It. p 43