great recs, ya'll...i'll leave out what's already been mentioned so as not to beat a dead horse, but i will give a hearty second rec of preacher by garth ennis and steve dillon...
my tastes can sometimes lean towards more esoteric stuff than i've seen here but anyway...here goes.
1. the transmetropolitan sequence by warren ellis- brilliant social commentary set in a futuristic environment known as "the city"...follow the exploits of gonzo journalist spider jerusalem as he covers presedential elections and more..."the year of the bastard" is extremely pertinent as we enter elections in U.S.
2. earth2 by grant morrison and frank quitely (quite frankly...get it?

)- a stand alone tale of the justice league as they battle their earth 2 counterparts, the crime syndicate of amerika...this story is brilliant.
3. the authority sequence by ellis, quitely, mark millar and bryan hitch- superheroes for adults and much more realistic, IMO. these guys take no prisoners and have fun doing it.
4. the Y: the last man sequence by brian vaughan and pia guerra (mostly)- what would happen if every male human being on earth were to drop dead at once? insanity ensues.
5. the planetary sequence by ellis and john cassaday- science fiction at its heart, planetary follows the history of the world told through the eyes of superpowered archaeologists.
you could do much worse than begin here and i could go on all day...so, there ya go
