I have an IRH as a schooling helmet, and a CO for show. Of the two, I prefer the look of the IRH more, but I really prefer the feel of the CO. In the end, I'd probably go with CO, even though I do like my IRH.
I'm looking into some MH boots, and I do prefer them over Ariats. MH has a larger size range and better prices. According to most reviews, it's about similar quality leather as well.