I played the regular Dark Terror, Jim Root Terror and the OR15 and 100% like the OR15 best. The gain on the OR just feels a tighter and less fizzy. I'd say I prefer the regular Dark Terror to the JR also. I do like the full eq on the JR though but the single tone knob is surprisingly effective. Just gotta try em if you can. Come to think of it, for what I mostly play the only Orange amp I really like is the OR15.