You know, for most of the 00s I was into the whole indie thing. I would have to say my favorite album of that time's gotta be Turn On The Bright Lights by Interpol. Truly a great listening experience. I can't say what the best is. So many genres and unfortunately I didn't really listen to too many or as eclectic of a mix as I do now. It used to be like choose my favorite bands and then label their CDs "the greatest!". Unfortunately that's the way I also feel it is for many critics. I actually liked Arcade Fire - Intervention and Ocean of Noise are probably my favorites by them.
I usually just digest individual songs these days anyway. I'm always excited to hear a new song that I enjoy, whether it be an old-school Metal song (Megadeth, pre black album Metallica), some new cutting edge "glam"-indie band, an OG indie song by like a Dinosaur Jr, Pavement or Superchunk, a Golden-Age hip hop song (Souls of Mischief for example), classic rock ranging from the Stones all the way to Rush, new-school Hip-hop like Kanye West, electronic like Dubstep or Calvin Harris for example, new-school rock'n'roll like the White Stripes (RIP), Dead Weather, Queens of the Stone Age, Wolfmother, etc. golden oldies Alternative like Oasis or Smashing Pumpkins, random songs by Neil Young, Steely Dan, Todd Lundgren, Jeff Buckley, even random artists like Das Racist (I know, who??). I know there's literally hundreds of songs that I will love that I haven't heard and may never hear. There's just soo much music out there.
I honestly feel like a new "favorite" song can just provide such a lift. Its almost like a fuel. My friends are usually the best at showing me new music, sometimes ill go digging for some of my own tunes, sometimes we'll just stumble upon them.
Damn I love music.