I've used Easy Boots and Renegades. I currently use Renegades.
And yes, Renegades are classified as "endurance boots" because they're made for hard, constant riding. I know several people who use them for endurance races and they hold up perfectly.
I find that the Renegades are easier to put on and they STAY ON. I can't tell you how many Easy Boots I've gone through because they've fallen off on the trail. (I do hard riding over rocks and through sand, etc., the Easy Boots just couldn't handle it.) However, you must make sure that the Renegades are on properly, otherwise they will fall off too. Here is a link to how they are to be applied, in the proper fashion: Renegade Hoof Boots