From a user's seat point of view, the 3710 on my 2615 HST has been one heck of a good BH. Dug a septic system drainfield with it the day after delivery, nice 5' deep straight long runs were no problem. Have pulled lots of stumps & rocks, too. Can't think of anything to complain about, it has excellent strength and seems like an ideal match for the tractor. Also, it is very easy & quick to dismount/mount. That has helped increase the usefulness of both considerably. On my loader & BH, the KMW fit, finish & workmanship is excellent; all welds are just beautiful, very strong. Even love the powdercoat finish, it really is tough.
While shopping I did see some pretty weak hoes out there - certainly would have been very disappointed with any of them. Honestly haven't seen the Woods BH, so don't know why or how much the $ difference might be. But if it isn't huge, I'd recommend the 3710. The other Woods units I do have don't appear as well made as KMW, IMHO. Quality & longtime satisfaction are always worth a little extra $.
Now if Santa could get a bigger bucket for it under the tree, I'd be even happier...