Those were some confusing tags...

Anyway, I'm thinking about making a mod called Unique Horse Breeds which will add a system similar to Oblivion where the different horse breeds have different stats and such, to make them differ from each other in different ways than just "they have different colored fur". So I'd like your suggestions on what the differences should be. For now I'll probably just modify health, speed, and stamina as well as the regen rates for all of those stats, though if you've got any other suggestions I'll see if they're possible. I'm also not going to touch Shadowmere or Frost anytime soon.

Right now I have:

Windhelm Horses: +75 stamina, +10% stamina regen, -5% speed

Reasoning: The horses of Windhelm are hardier than any others in Skyrim. They have to face the biting winds of Northern Skyrim and navigate the slippery ice. As such, they have a much higher stamina and regain their strength quicker than most horses, though being slightly bulkier, they are a bit slower.

Whiterun Horses: +7% speed NEED OTHER SUGGESTIONS

Reasoning: The horses of Whiterun are used to running free in Whiterun's surrounding tundra. They are fleet of foot and quick to escape packs of wolves.

I'd like lots more suggestions, as well as some reasoning for your boosts as well, if you can. I'd also like to know if anyone's interested in me changing the costs for horses as well (I can't remember if Convenient Horses changes this... Could anyone remind me, since I'm going to try to avoid conflicts with CH if possible.)