I've seen the mighty Opeth a couple of times this year and they always deliver. Also, for a metal band they make the best use of pinks, purples n blues in the lighting spectrum of anyone I've seen!
Acid Mother's Temple at the Deaf Institue last month
Julian Cope at the Liverpool Academy in September
Holy Fuck at Glastonbury
Kings of Leon at Glastonbury
(Get) the Blessing at Brecon Jazz
but for sheer monumental emotional bliss and experience my top two are....