quite hard to choose but off the top of my head -
Best:
Oasis at Loch Lomond in 95 - they were at their height, I was mad on them, 40,000 people in the open air, I was drinking vodka at 9am, they left on a helicopter! (cant get more rock n roll)
Sleater Kinney a couple of years ago at UCL in London - Attended a riot grrl picnic before gig, met loads of cool people, Just a great night
The Verve at Brixton Academy, 1998 - Amazing atmosphere
Death In Vegas - Kentish Town Forum 2000/2001 - they blew me away, i was on such a high (well , i had my first e so maybe...
Worst:
Gomez at Hammersmith Palais - 1999 - had to be seated, very dull, very boring!
arggh, I cant think of any more bad gigs, im sure there are loads though...