Mercenary 2008, with like maybe 200-250 people. Seemed like everyone was there for death angel, the stage is pretty low, so I could headbang next to them practically haha
That was just plain awesome.
They were also great the 3 other times I saw them, altho 2 festivals and one bigger venue, totally different atmoshere.
Unearth during summer last year was also pretty intense. Small venue, were my band regulary gigs too...easily over 350 people I'd guess, when the venue is allowed to have something like 250 iirc. in the middle of august, hottest day of the year. the only times it has been as hot on a gig was when I played myself. but awesome show.
maybe both those 2 small club shows were also as awesome, because I got to meet and hang a bit with some of the band members afterwards.
my first time metallica in 2004 was also pretty epic. the other ones were also really nice, despite lars and kirk at most spots^^
oh yeah, and soilwork in 2005 was also reaaaaally nice. not too many people (400 maybe), stabbing the drama tour. fuck yeah.
killswitch engange in 2009 or '10 was one of my favs too...1200 people or something like that, last show I saw with howard I think. killer.