I think 19XX could be either of these things:
A. Ban Zane/Troq
B. Also ban Geiger/DeGrey
C. Also ban Grave/Setsuki
Basically each set of bans creates a new meta each time. We could then say that Arg and Lum possibly terrorize the characters who are left, much like the top tier of current 19XX is clearly Grave and Setsuki imo.
In essence, there will always be a top tier. I think we all understand and accept this. But maybe 19XX should just run the numbers on what the most popular characters are and then ban those so that we see new matchups, lol. I think BBB might end up banned in a format like that, ha.