It depends on what you consider to be a great chorus tone. I have two chorus pedals, a Voodoo Labs Analog Chorus and a TC SCF. Both are great-sounding pedals in their own way though they sound very different.
The TC SCF is a very hi-fi sort of pedal in that it's got a very full frequency response range. When I was first looking at it, I went to a clinic performance by Preston Reed, an accomplished acoustic player. Preston was using the SCF for his acoustic instruments. Perhaps another way to think of it is that if you want a very modern-sounding clean tone, like John Petrucci, the SCF is a very good pedal choice for that sort of sound.
The Voodoo Labs pedal is definitely more of a throwback pedal. Indeed, it's modeled after the old Boss CE-1 Chorus pedal from the '70's. It's a great pedal if you are more into the chorused sounds from late '70's/early '80's Rush or perhaps the Police. The only downside to the Voodoo Labs pedal in my experience is that I've had it break down twice and it's the only pedal I've ever owned that's had a mechanical problem. But when it's working, it's a great-sounding pedal.