Do you already have a bucket on your tractor? The 4 in 1 bucket will hold less material because of all the additional steel it takes to make, which makes it quite a bit heavier. If you are ordering the tractor and don't have it yet, then the 4 in 1 is a very good option, but it isn't anywhere in the same league as a grapple. My neighbor has a tractor very similar to mine with a 4 in 1 bucket and he has bent his bucket several times picking up logs with it. We're talking full sized loader backhoes. He gets the job done, but a good sized log that moves will bend the metal. I never have anything move when I pick it up with the grapple. I have two arms that lower that hold any sized load securely. My neighbor is seriously considering getting a grapple for his tractor, but seems to be hesitating because of the work involved in converting it to a quick attach or other system to easily remove his bucket and install a grapple.
I also have used my grapple to fill in holes from stumps. It's slower then the bucket, but still faster then taking it off and putting the bucket back on.
Nobody regrets owning a grapple. My tractor spends more time with the grapple on it then anything else!!!
Eddie