I will get to that as soon as i finish downloading this game.
J.B(2), J.C is the easiest variant imo but it is character specific (beware of celica, amane, izayoi, and the smaller hitboxes.)
J.B(1), J.C is a little harder but i found it very consistant.
J.B(1), J.C, 5D imo is a pain in the ass. However my execution isn't top tier but this also gains the most heat. If you have good fingers, go for this.