We're a bit torn as well. People argue that 12% is an extremely low (historically speaking) marginal tax rate, and that we should lock in that tax rate by prioritizing Roth over traditional. However, looking back, outside of WWII, tax rates have always gone down, not up. I just don't see a politician being willing to raise taxes on the middle class (even if we are undertaxed).
However, I split the difference. We still fund a Roth IRA every year, which doubles as a backup emergency fund. Other than that, the rest of our investing goes into traditional accounts.
Also,
@coldestcat @Psychstache you can only one one HSA between yourself and your spouse. Or rather, you can only contribute $7,000 ($7,100 in 2020) to HSAs between the two of you.