You know, I'm wondering if there really is much of a difference from one brand to the next. It seems everyone is happy with which ever brand they go with.
I do know they could make a difference, but on a tractor, I just don't think it will. My buddy has bent a tooth on his toothbar, but that's on a skidsteer capable of lifting over 2000 lbs.
Me, I have one from Wallace. It works fine, but I wish it had an extra tooth. I'm not saying it needs one, but I just like them spaced a little closer together. But then again, it might look funny if another one was on there.