I love cavallery controlled by the player. It feels awesome (Even, if many play like medieval knights, without having to use a saddle...^^) and the effect of soldiers flying around like toys looks cool.
But because cavallery is soooo weak in melee the Ki sucks at using them and therefore the system is a little bit messed up.
I hope the Ki in EBII is a little better, but since the MWII Vanilla had the AI use heavy lancers quite effective(At least not useless) I guess itll work better with EBs heavy shock lancers.