Hi, and welcome to The Horse Forum!
I have used Empower Balancer, Buckeye Grow-N-Win, and Hubbard Ration Balancer 30% (which I think is very close to the Triple Crown 30%). I have Enrich 32 available in my area also.
For my horse, the Empower Balancer has been the best, with Buckeye grow-N-Win a very close second (but harder to get in my area.)
I have nothing against the Enrich 32, but when I really researched RB’s in depth and my horse’s needs, the Empower was the better choice over Enrich and indeed my horse is slick, healthy, happy with a mellow temperament, and has great hooves.
Unless a serious health issues forces a diet change, we will be staying on the RB’s.
My boy only gets ½ cup twice a day (along with a little flaxseed and 1 oz. of hoof supplement) and one bag of "feed" last me 2 months.