hmm... to define Shoegaze in a nutshell: it's a late 80's to early 90's genre of (mostly) British based indie rock, noted for squalls of effects, noise, feedback, and wall of sound, but not bereft of pop melodies and structure. the tag "Shoegaze" was penned by the UK music press of the time, because these bands seemed bored and were wrongly accused of constantly staring at their shoes in live performances. the truth was that they depended on loads of effects pedals and other floor mounted equipment to replicate the lush and noisy wall of sound that were put out on studio releases, and keeping track of which pedal to push midway through songs takes concentration and planning, which in turn looked as if these bands were "staring at their shoes."
Shoegaze is directly influenced from early EPs and the full length album
Isn't Anything by My Bloody Valentine, as well as IMO even more influential album
Psychocandy by Jesus and Mary Chain which predates Isn't Anything by two years. the genre also owes debt to Cocteau Twins, The House of Love, and Dinosaur Jr.
as for the best Shoegaze albums, i'm biased in saying Ride's
Nowhere is the best... everyone else can duke it out for second place!
okay... i'll be fair,
Souvlaki by Slowdive and
Loveless by My Bloody Valentine are as equally good as
Nowhere. my other faves are
Chrome by Catherine Wheel,
A Storm in Heaven by The Verve,
Everything's Alright Forever by The Boo Radleys (i'll agree with DA that
Learning to Walk is their best output by far, but it's not a proper album but a collection of early EP's), and
Mezcal Head by Swervedriver.
it's amazing that most of the albums i've listed were issued by Creation Records, who's founder Alan McGee can also claim major contributer to the Shoegaze genre. i have no doubt in saying half of all classic Shoegaze music were issued by Creation Records.