I don't have the EA grapple, but if I was buying a new grapple, I would buy theirs.
I bought both of mine while buying my tractors, so having Kubotas, I had no choice but the LandPride at time of sale. While I like them, and they serve me very well (my favorite and most useful attachment), I like the design of the EA better. It's mostly similar in basic design with the dual actuators on the back instead of out front, but EA's has the serrated teeth for better gripping of the load as well as better support down low on the bottom teeth where you will likely root stuff out. I have bent my lower teeth on my first LandPride while using it to root out privet and have come close to bending my new one while lifting huge pieces of tree trunk from awkward spots. Not saying you can't bend the EA ones as well because they are both made with the exact same steel, but with the lower support bars between the teeth on the EA, they should be more sturdy and hold up better with less flex.
I also like how they took a lot of weight out of their design without giving up any quality. The less the grapple weighs, the more load you can lift...