My Voltage FR came with dual crown Domain RCs and since then it's had Boxxer RCs and R2C2s
tbh there wasn't that much difference between the Domain and Boxxer RCs apart from some weight saving. If anything the Domains were more compliant at low speeds but neither of them was particularly good. They handled one-off impacts OK but felt out of control in sustained ugliness. The R2C2s were a lot better but only came to life when charging through stuff. Obstacles that had the RCs in a panic were a non-event with R2C2s but at anything less than full tilt they were distinctly meh.
The bike is currently fitted with Lyrik RC2 DH solo air which work well pretty much everywhere. They're lighter than the coil Boxxers and 90% of the time they are just as stiff. The air and damping adjustments allow you to set it up how you want.
I don't think I'd go back to dual crown forks again. The ultimate stiffness is nice but you need to be attacking to appreciate it.