To be honest only very very very few of us uses heavy horse, most of us uses light horses
Indeed Torben , after the patch (The nerf to the horses). Heavy horses can get 1 hitted if enemy swing his weapon to the horse's head. if you play in battle you will see that horses like plate charger can only last about 2-3 hit now, before was 8-10.
8-10 is way to many, 3 hits allows you to ride around through infantry slashing at them and not die (also if standing still it's way more than three), even though I've yet to see a plated tincan survive 10 hits while standing still and if it was indeed three hits it might've needed a buff, but NOT 8-10, also line that pissed me off unbelievably was "EVEN HEAVY HORSES ARE PRETTY MUCH USELESS SINCE NERF" using the word EVEN makes you claim light horses are worse... so... lolz... but seriously heavy horses still have huge advantages, 3-6 HT jarids to a rouncey or 6-8 to a destrier or 10-12+ to a charger+, this means you're WAY better off against ranged (I recall a while ago messing with my archer alt and a champion mamluke on EU_3 took a shitload of arrows to kill it (from my 6ps longbow), any player who cares about upkeep is lolz you can do three things: Glitch it, sell a loompoint for huge amount of cash, or bitch about it. My small horse often/near always gets onehit by inf with the tinniest amount of speed bonus, if standing still av hits it takes from none-pure agi inf is 2 (to the head)... so... your plated tincan is fine...
also "Indeed Torben, after the patch (The nerf to the horsies). Heavy horses can get 1 hitted if enemy swings his weapon to the horsies head", last I checked (could be wrong) only recent nerf was extra melee damage to the legs, also, inf probably have speed bonus on that. It takes ca. two hits from my poleaxe to kill my steppe horsie (hits are to the head).