As to the question of what they're like compared to soaps it's difficult to answer, it's possibly too generalised a question. Like asking how a BMW motorbike compares to cars, they're just 2 different things. Creams are basically softer, much more hydrated versions of soaps. Soaps are hard and last much longer, and can be a little bit trickier to use until you "get" the technique. Some people just prefer the speed of creams.
Most of us like both on different days, there is something nice about the ultra old-schoolness of a hard soap.
TOBS cream is excellent by the way. I don't have any just now but I've had 2 types and I'd buy them again, once my three tubs of T+H run out in 2014. TOBS hard soaps are equally well regarded, they're just very different to use.