I'd prefer a dark, gritty, multiculti, lowmagic setting.
Icy north with grim dwarves, dark forests with even darker elves and many, many human cultures and races.
Do you know the setting from GEMINI, this small and unknown RPG from Norway? It's great!
What I also wish, is a little less. Less magic, less artifacts, less everything.
Low magic is great with HARP, because it offers the opportunity to develop or even explore the old "High magic" (what I call Arcane Magic). Magic Users are rare, maybe even hunted (religious or for experiments...).
Having no magic user in one group doesnt destroy the gaming balance, as it would in D&D/Pathfinder for example.
My 5 cents...