Always though that there are other horses than Courser and other lances than Heavy lance. No?
yeah, i take a rouncey too, and i like it, but it still lacks a best side, like the arab and courser have. and for the lance, if you want to fight other cav, you need a heavy lance, and because all the cav who have lances want too, the other lances are utterly useless. if you don't want to fight cav, you go 2/1handed cav, which is cheaper and leaves you with omer slots.
that's why i'm going 2handed cav