My favorites are mostly beers from Belgium: Chimay (rouge, bleu), Leffe (blonde, brune), Duvel, Kwak. Grimbergen is also quite good.
I really liked Cascade and Boag's beer, brewed in Tasmania; where Cascade is a bit tastier than Boag's.
Surprisingly, the Solomon Islands in the tropical Pacific have their own really good beer. It comes as a lager beer, Sol Brew is like a pilsener, Sol Brew Special is stronger and darker. And even if the beer gets warm (happens quickly in the tropics...), it tastes good. Every evening with a Sol Brew after field work in the jungle was a really good one
Here in Germany, there are some tasty local beers:
Pinkus Pils and Pinkus Alt, brewed here in Münster (a bite stronger than normal, rich taste of spices, I never got a hangover from Pinkus beer).
Pott's Landbier, brewed in Westfalia. Brown, full taste. My favorite, comes in nice bottles which are easy to open.
Stephanus Bräu, brewed in Coesfeld (near Münster). Quite strong, a bit similar to a weizen beer.
Andechser Bock beer, brewed in Bavaria. Strong, dark, very rich taste.
Vulkan Bräu, brewed in the Eifel region. Old brewery, produces a pilsener type beer in volcanic caves.
Franziskaner Hefeweizen, from Bavaria. A tasty weizen beer, comes as a dark, light or crystal clear beer.