Maximo Park , very underated band and v good live.
I saw them win a Battle of the Bands competition at the Cluny in Newcastle years back, and realized straight away they had something special. I've seen them several times since and they've always delivered.
My other favourite gigs for all kinds of different reasons:
The first Lollapalooza fesitval, somewhere near Washington DC, 1990. Not because of Jane's Addiction who were boring, but because of 1. the bizarre and brilliant, Butthole Surfers and 2. Siouxsie and the Banshees, who were exotic and sinuous and utterly wonderful.
dEUS at the Jericho Tavern in Oxford sometime in 1991, I think - it was just after their first album came out and it was incendiary. I also coped off with this really hot lass largely because she thought I looked like Bernard Butler from Suede...
Pixies, around the same time, at the Crystal Palace Bowl. Less said about support act, Cud, the better... I missed going to see them the week after with The Pale Saints, which would have been even more awesome. I've actually seen The Breeders play more often (who in many ways, I actually like more).
A ramshackle vegan punk band called The Tofu Love Frogs and a very earnest fiddle-driven eco-pop outfit called The Dharmas in a squat in Brixton in around 1993. It seemed amazing at the time, probably because there was a lovely lady with dreads involved...
Any gig played by my friends, The Mystics, back in Oxford in the mid-90s. This band really should have made it, but circumstances conspired against them. Live, they were frighteningly good, and almost matched by contemporaries, The Nubiles, another nearly band from Oxford at the time who were by far the loudest band I have ever seen. Strangely enough, I never saw the ultimately far more successful Supergrass or Radiohead play live despite the fact that they were all friends of friends and we used to seem them down the pub all the time.
The Egg, in a tent at Glastonbury sometime very late at night in ?94 or ?95. Also friends from that period, this pioneering but chronically underrated live electronic dance band are (almost unbelievably) still going.
Shonen Knife at Club Quattro in Shibuya, Tokyo, 2006. Just a totally different kind of experience but so much fun...Also that same year I went to see a strange improvised gig by an amazing Japanese multi-instrumentalist and various friends who did things like drop bits of metal on the floor and hit things. Can't remember his name, but it was incredible.
Rich Aucoin (look him up on youtube), 2011, in a tiny local pub in my current home town in Canada. There was crowd-surfing and glitter bombs, sweat dripped from the ceiling, and I danced myself stupid.