I have to choose which to see live

Only have enough money for one gig, have seen Sleep before but they utterly blew me away, and I want to repeat the experience.

It's: Sleep, Melvins, The Psychic Paramount and Iceage

vs

Godflesh, The Soft Moon and Liturgy

Or I could throw it all out of the window and go see Chris and Cosey with John Talabot and Ital.

Advice pls from people who have recently seen Godflesh and/or Sleep.