i either use a horse for transport to a good spot and then fight on foot in larger battles or if i outnumber them to crush the enemy beneith its hooves.
or have a decent sized cavalry and swing round and charge there flank
having more common cripiling of the horses would be good i think, i think they increased the cripiling rate in fire and sword and that makes me value my horse more.
also just watched dalkars little lord of the rings gif image lol, very funny.