Actually most of the time j.B j.C works better (unless the opponent is too high) since it gives you time to confirm properly, plus j.C whiffs on Hazama, Litchi, Hakumen etc. It also does more or less the same damage in a BnB. However if you're in the corner you should go straight to j.C for optimal combos (5C(w)C follow-up). Obviously these are pretty hard to land on the aforementioned characters though lol.