La Fin du Mond (The End of the world) is a french beer that is supposed to be the best beer made. The name is rather fitting since the french making a plebeian beverage such as beer surely means the end of the world.
Personally my preference is for Guinness but that is obviously a big market label there. Check out their extra stout though if you have not.
Asahi is a fairly common import brand but one of the few I enjoy aside from Guinness.
Aside from the few beers that I enjoy I also like hard cider. Hornsby's is a standard and I prefer the amber, as noted by another user. The amber has a sort of beery champagne taste while the regular tastes almost exactly like apple juice. Woodchuck, either regular or amber, is very sweet tastes almost exactly like apple juice (not that thats bad). I hardly remember Strongbow so I guess I will rate it "unmemorable". Ace is rather dry and acidic.
My favourite cider was Hardcore: Black Label though I have been unable to find it in years now. Wyder's is another standard cider you will find though it tends to be expensive and tastes again much like juice though somewhat dry. Personally I would go for Hornsby's, typically cheaper, over Wyder's any day. On sweet beer like beverages you may also want to check out Lambic.