Those KDRs are pretty bad for cavalry really, any cavalry can usually get 3+ kills per round just attacking idiots from behind.
Lancer cav, yes. The others included, mehh. Just think its weird that one entire group of players gets an average k/d of 1.8. Even with weaker classes as HT, HC and HA taken into account. Average in any class shouldn't that far from 1. Although these are only the guys above lvl 30, which are generally the more experienced players, which makes this probably not representative for the average player. Still I would like to see similar data of all classes to compare, or even better, data that is representative for the general playerbase.