jhine,
There are some that want "all things" or the "world" to be a few things and as we are told translation is complicated.
But I think is a good thing to consider the context. Colossians 1:13-20 seems to speak of the relation of the Son to all things. Paul really seems to painstakingly say the Son is number one in ALL Things. It would be strange if all things were really a code for few defined things. But you will find people that really believe Colossians 1:13-20 speaks of Son's creation of the saints only in an exaggerated language. Calvinists often believe the world in John 3:16 is the elect saints:
http://reformedanswers.org/answer.asp/file/45604
In 1 Peter 4:7 we read the end of all things is near. That is a difficult text, but I dont believe it can mean a few things. It must be all things within a context. I believe the context is the old world. JWs believe that is just around the corner, as Preterist I believe the last days of the old world was about 30-70 AD.
In Romans 8:19 we read that the creation eagerly awaits the manifestation of the sons of God. Many rationalize that into the saints eagerly await their glory. Not surprisingly we are some that disagree and take Paul on his word. The old Calvinist Charles Hodge saw this too in his amazing commentary that sadly did not include Colossians:
https://www.studylight.org/commentaries/hdg/romans-8.html
I conclusion I will go very far to argue that all things mean all things within their context. So if I spoke to JWs concerning John 1:3 and Colossians 1:16, I would not have an A Bomb for them but I would say that it would be very odd that they would be say that a) a creature is part of the creation and b) that the cause of all things, Logos, is a creature.
Michael is "one of the chief princes" Daniel 10:13.