You want multiple target? I recommend a mount with Trample, a Drakkensteed comes to mind and Paladins can get it as an ACF instead of their usual mount, oh and it flies too. Now if you want to do the Mounted Fighter (which i recommend as it gives you some versatility) Id find an animal with Trample and take Wild Cohort and use it as your mount, then take Mounted Combat, Ride By Attack, Spirited Charge, and Imp Trample and Mounted Archery, pair that with a Valorous Lance and then run off into the Cavalier PrC. By the end of Cavalier youll be full attacking at the end of a mounted charge and doing x6 damage with that Lance. If you want to get REALLY silly grab TWF and dual wield lances and get your Gaia the Fierce Knight on.