The Cure - Entreat
awesome sound quality, the band plays tight, Robert Smith's voice is at his best (he sounds amazing on "Prayers for Rain" and "Disintegration"), and all eight songs are from Disintegration, how can you go wrong? i just wish the whole concert would've been released, but that would take up three discs
Ride - Reading 1992 (from the three disc Box Set)
a recording from the band's peak, and regarded as their best live performance. the sound quality is really nice, although it wavers slightly during "Sennen."
New Order - BBC Radio 1 Live at Glastonbury 1987
the live version of "A Perfect Kiss" is worth the price of admission alone. it also doesn't hurt that the live version of "Touched By the Hand of God" is better than the studio version, and the unveiling of "True Faith" is really tight.
of course these are officially released material. there's many live bootlegs from each of these bands that surpass the quality of official material.