For level 9 Fighters, hunting Hill Giants is very popular and profitable. Fighters at that level can hunt Hill Giants solo without much trouble, provided they have potions. However, with a Cleric, they can kill the Hill Giants much more effectively. As Hill Giants have very high Armor Rating, it is helpful to have a high Anatomy skill level, as Critical Hits ignore Armor Rating. Hill Giants are susceptible to poison and poison weapons will kill them much faster.