Best Green Day Albums?

A friend introduced me to them and I'd say quite a few of their songs are great but most are kinda bland.  I wanna get more of their songs but don't feel like downloading multiple Gigs..  anyone wanna suggest which albums to focus on?

>>14
whwhwhwhwhhhwhwhhwwhatttt!???!?

wooh now
the early stuff was their best stuff
american idiot was placated to the emo croud rather than punk
if green day does another album like that they AREN'T punk anymore. they'll be another My Chemical Romance clone