Small quibble: if you have any future tax years that are in a lower bracket than what you're in right now, then a traditional 401k is probably better. You can a

Small quibble: if you have any future tax years that are in a lower bracket than what you're in right now, then a traditional 401k is probably better. You can accelerate taxation into the current tax year via a Roth conversion, which means that if you spend a gap year without taxable income, that's a bunch of room for making a Roth conversion.