DJ Shadow - Endtroducing
A breakthrough album for the hip-hop genre, this often downbeat but never depressing album has layer upon layer of samples from obscure vinyl, covering multiple genres but transcendin all of them. Often imitated but never bettered, this is an awesome achievement, and 'Midnight In A Perfect World' remains one of the definitive trip-hop records.
For me this is the album that best encapsulates the varied styles that Radiohead have had over the years. The fact that my favourite track changes every time I listen to this is probably one of the main reasons I like it so much - from the hauntingly beautiful 'Nude' to the crunching rhythmns of '15 Step' via the fuzzed up 'Bodysnatchers, this has everything you could ask for from a Radiohead record.
The Beatles - Revolver
Yes, I know it's got 'Yellow Submarine' on it, but it also contains 'Tomorrow Never Knows', a song that single-handedly invented most of the music I listen to. Everyone's got their favourite album by The Beatles, and this is mine.