Hard to pick one.
I saw the Manics when they played the Royal Court here in Liverpool back in 2006 or so.
They were still a big stadium band back then, but were playing a load of smaller venues they used to frequent in their early days, something to do with the 10 year anniversary of Richey Edwards going missing.
They played for nearly 4 hours, not including the support band 'Delays' who were fantastic as well.
They were by far the loudest band I have ever seen (and I've seen Motorhead on several occasions)
I saw Pendulum when they first started doing the Pendulumlive shows just before their 'In Silico' album dropped. Way up there for the pure energy alone. It was absolute madness
The Chemical Brothers at Creamfields back in 2005 was something else altogether. If you are familiar with their live shows, you'll know all about the pure visual spectacle of it all. On top of that, this was when the festival was still being held at the old Speke airport, next to the then newer Liverpool John Lennon Airport.
So you had these planes coming in to land, swooping low over the field and over the main stage.
It was night time, the light/visual show was in full swing, they were belting out the hits, I was off my face, having a good time, then passenger planes with their lights on started swooping in extremely low overhead as they were going in to land. You could feel the downdraft from them as they went overhead.
Whole thing was the most amazingly surreal gig I ever went to.
Off to Glastonbury on Weds, so hopefully some more to add next week