Well, I don't imagine this requires its own thread because it's probably not a topic important to most people, but did Rockstar do their research on these horse breeds? Obviously, they studied them enough to know what they look like, but then you go into the stats and it seems like all they did was look at pictures. Don't get me wrong, I'm loving the game so far, but I am a gamer and gamers complain.
I can't see any gameplay balance reasons for getting almost every horse's characteristics and history wrong. For instance, the Tennessee Walker you start with is not a working horse or a fast horse or a particularly strong one. It's a gaited breed made for casual riding and pulling light carriages, prized for its elegant step, not work or range utility. Imagine my surprise when I bought a Morgan, the standard breed of the US Cavalry, and found it to have low health and stamina, lower than a Walker.
That's ridiculous, Morgans are legendary for their stamina and resilience. I have personally seen one pull a bull to its knees by the horns, and I owned one. Best damn horse I ever had. Every pasture I put him in, he was the dominant horse, which is saying something because Morgans are so small, rarely topping 14 1/2 hands. Yet he could out-pull anything short of a draft horse, outlast any trail horse, and even out-sprint some quarterhorses. That breed is built for the sprint, their name comes from being fast in the quarter-mile, they're like horse drag racers, with enormous rocket-engine butts, and a Morgan can beat some of them. They're light enough that they can accelerate quickly, even hauling my 6'2" carcass around. I's a consequence of the inverse square law. Increasing the size of something has a direct squared relationship to how much energy it takes to move.
Yet somehow, quarterhorses have more stamina in the game They absolutely do not. Riding a quarterhorse is like riding a lawnmower most of the time. They can sprint, sure, and they can canter for a couple of miles at best, but the rest of the time, you have to let that horse eat. They eat while they're walking, and they get hot fast. It's the cost of all that junk in the trunk. Cowboys used them a lot to sprint after cattle, which are comparatively slow, and they are ideal for that application. You don't want any cattle breaking away and dividing the herd, while the rest of the time, you can walk as slowly as they do. Cows graze on the move, too.
I know it's just a game and you can't expect everything to be perfect. IRL, horses will not run off a cliff, or into any unbroken barrier, that's allowed so the player has to actually play the game, rather than falling asleep in the saddle, which you can do. Well-trained horses have an innate cruise control. That's what most people experience when they go on paid trail rides. The horse knows that if it follows a certain path, based on a certain set of stimuli, it gets food and rest. Couldn't care less what the rider is doing, which is why such attractions are safe for kids.
This thing about breeds just seems like something that could be easily addressed and changed with only a few hours' work. I don't know much about modern programming, but I know QBASIC and I know variables. I also know other horsemen who are generally satisfied with the way riding is treated in this game, I certainly am, especially that lovely gallop mechanic. Western riding is all about moving with the horse. It's not quite the same in the game but it's close. How do you do everything so right and then screw up the simple part, Rockstar?
Alright, that's the end of my little rant. I don't expect anyone to go back and do more work when it's clear that you already put a lot into this game. Maybe the modders will, if and when they are allowed. Maybe just consider this as advice for the next installment, which I am looking forward to seeing, even paying for.