The Might set is pretty good and also bestows level 1. The individual pieces have value even when the set is broken up too, so that would be a consideration. Of course, that depends on the rest of your build. I used that for our Dwarf Fighter, and my Druid to get 5.
In our 2017 runs we had 10 players at level 4. For 2018 we had 10 players at level 10, so we too got token-fever last year. Most of that was due to Ring of Heroism.
Even with several folks getting Kilts this year: if you started with Tooth #4, 1,2,3 are going to cost $700-800 (?) and still take a while to transmute.
Bot4W is $1,200-1,400?
Charming set, might set, ring of heroism and charm of heroism are all good options. While I agree that the pure level boost items will lose a little value, I think they will settle into a spot of reasonable value (maybe 20% drop). Unless you need to boost the level before PAX, it's probably worth waiting until closer to Origins to make that purchase happen.