I've seen quite a few shows, from 311 to the allman brothers (awesome) to Phish to clapton, page, santana, sunny day real estate (an incredibly sublime show) and so on, but the most hard-rocking and professionally played show I have ever seen would definitely be fugazi, the hardcore unit out of D.C...These guys really care about what they do and put out a political message (without using such a hypocritical forum such as MTV) in the process. Ian Mckaye and Guy Piccoto rock as hard as any guitar duo out there.

I 2nd that emotion...they would kill Limp or Korn in a adrelain contest

Seen Fugazi twice. Both times were here in Chicago and Steve Albini in Schlack opened. Damn good shows!