I think they are the best out of all I tried (Easy Boot Bare, Epic, Edge, Cavallo Simple Boot and Old Mac). The easiest to put on and the gator keeps them in place in mud, sand, water. Plus what I really like the boots are below the top of the hoof.
The minus of Epic is those wire system on front (I wasn't impressed much), and Bares can be hard to fit very tight.
I heard great things about Gloves, but they don't fit my horses perfectly (I ordered the fit kit to try), so I decided not to go with them. The latest one I got are Edges: they are much better then Epic and Bare in design: more light, adjustable, and just better looking.
BTW, the cheapest place to shop for boots is valleyvet.com (+ delivery is free).