You'll probably get differing opinions on which is "better". In some cases, a hydraulic would be better, as it eliminates having to have a direct linkage between the pedal and the clutch fork. They also tend to require less effort to operate. On the other hand, on vehecles already setup for a mechanical linkage, especilly with the pedals mounted to frame, staying with a mechanicl linkage would save work and redesigning things to accomodate the hydrualic system.
Now for the personal opinion; I don't really care much for hydrualic clutches. There's no "feel" to them. I like being able to feel the clutch back through the pedal, something ou don't get with a hydrualic system.
