[eternal_intern]

Why not list the pros/cons of each method and let the candidates choose their poison. Whichever metric they think they would be best at given their constraints.

Still requires work and a subjective estimation of candidate skill because you have to make a judgment across metrics instead of within one, but I mean, everybody wins in this case, right?

[borramakot]

I like the idea of multiple tracks a lot, but I think you need to be hiring at sufficient scale that each track has a fairly high rate of interviews, which makes it hard to support tracks that aren't commonly chosen.

If you don't had that scale, uncommon tracks will be full of interviewers who are out of practice for your question, and poorly calibrated to evaluate the candidate.

Also, some companies might not want to allow any of these methods, since they each have their own tradeoffs/blind spots.