A bit of an old school choice, but I've got to go with Green Day's Dookie. Not only is every song a banger, but it holds a special place in my heart as one of the first CD's I ever bought with my own money.
Not sure if I can pick favorites but I'd definitely rank Masked Intruder's self titled somewhere up there! Not to mention their shows are ridiculous fun.
More recently Intruder Blue did a tour over at the Punk Rock Museum, makes me wish I was closer to Vegas to go to those things.