Audioslave at the o2 Arena about 7 years ago has to be the all round best.
Download 2004 was an awesome weekend. Line-up was top drawer (Metallica, KoRn, Slipknot, Linkin Park, Soulfly, Machine Head, Electric Six, Slayer, Damageplan 36 Crazyfists...)
First time I saw Stone Sour at the Birmingham Academy was cool. Just a perfect mid-size venue and a high intensity show. They were supported by Saliva, who I always thought were
OK, but they were spot on live. Got to be one of the best support bands I've seen.
And also the most recent time I've seen Stone Sour as well, which was at the Wolverhampton Civic. High intensity again, plus midway through I took a blow to the head, and just staggered out into the toilets in time to spark out. Came round about 2 minutes later sat on the bog with a pile of sick on the floor in front of me, and could hear them playing the track "Bother", which was pretty cool.
KoRn at the Wolverhampton Civic in 2008 was great as well. I'd seen them play some massive gigs packed with pyros and what not, but this was a totally stripped-down gig. Plus they played 2 of my favourite lesser known tracks from way way back, which I'd never known them play live before. Ticket price was more than double what I've ever known for a gig at the Civic, but well worth it.
Cypress Hill at Hammersmith. Crowd interaction was totally off the cuff and was so relaxed between tracks, but then totally insane while they were playing.
Hell Is For Heroes at the Civic the first time because I got knocked out, and was totally covered in blood, and got took backstage with the band as a kind of "reward", lol. And the last time at the Birmingham Barfly as it was their last ever tour, 2 gigs from the end and I just love them. It was in a small, intimate venue.
(hed) PE and OPM at the Academy II as it was the smallest venue I've ever been to, and was a truly unique "underground" atmosphere, and members of the bands were just walking around the floor like anyone else, even had a piss next to Jahred, lol!
Speaking of which, Guns N Roses at the NEC were top notch as well, and at that gig I had a piss stood next to Olof Mellberg!