My favorite colors would be dun/buckskin shades and then the silver shades. However, saying that, one of the horses my grandfather had when I was growing up was "just" a blood bay - no markings, but he was such a rich and shiny color and it was utterly gorgeous. I love pinto and appaloosa patterns as well.
I was thinking of the Criollo brindle horses in particular, as some of them express more obviously than HoFa's skewed roan, but that's the big difference that you can see the brindle pattern a bit more easily. I love HoFa's horse colors an the variety of them, especially how they do express differently in some of the breeds as well and the crossbreeds. Makes it very fun! :D
I am just checking to see what sort of horse markings I may have on my laptop. I found this one right away - I'm pretty sure it's a snowflake appy but certainly far more white than I've seen before on a snowflake pattern! https://imgpile.com/i/dKtz4k
Reverse dapple https://imgpile.com/i/dKt8tM