Are you using the rockers overdrive?

If so, any reverb epdal you put through it is going to sound like a big muddy pile of watery mess.

Otherwise the Holy Grail.
No it'll sound like crap if it's not in an FX loop with the distortion channel on.
ENGL Fireball
Framus 2x12
Ibanez RG1570 - DM Breeds
Epi Les Paul - Warthog Pup
MXR 10 Band EQ
ISP Decimator
Boss DD3
EHX Holy Grail
EHX Small Clone
Dunlop Crybaby

http://www.youtube.com/watch?v=10rdcKp317I - New X-men Theme Vid