Jeff, there's more to consider than what you spelled out in the question, or by the answer offered so far.
To say "I will be in the 25% bracket at retirement" implies that, for a single person, you have (in 2017 dollars, today's tax code) over $38,000 of taxable income. Only the amount over this will be taxed at 25% or higher. The single gets a $4050 exemption, and $6350 standard deduction. The total is $48,350. It would take $1.21M in pretax accounts to generate the $48K each year (using the 4% rule).
Now, let's say you pay the tax now, at 25%, and live tax-free in retirement. The tax on that $48,350 from a pretax account, would cost you $5226 for a net, $43,124. But if the funds were all post tax, you needed to deposit $58,500 to clear this amount. Huh?
You see, while working, deposits come off the top, a $1000 deposit to a 401(k) or IRA would be at 25%, and 'cost' you $750. But in retirement, you have the zero bracket (what I call the combined exemption and standard deduction) and then the 10 and 15% brackets to work through. If you retire 100% Rothified, you miss that opportunity in retirement.
On the back end, the 25% bracket is pretty deep, from $38K to $92K taxable income. It would take a huge amount of pretax money to push you into the bracket after that, 28%.
A similar question - When should I contribute to my IRA over my 401k?
The 2017 Tax Rates, both single and married
My award winning article The 15% solution which presents the concept of using Roth while one is getting started and likely in a lower bracket, then shifting to pre-tax savings, to minimize one's average tax burden over their lifetime.
NOTE: The comment disclosing that the OP is a couple who will have $84K from a pension changes things dramatically. As a couple, in today's dollars, a gross income over $96,700 puts them in the 25% bracket. In which case, with $13K or so "room" left, I wouldn't want too much going in pre tax. I'd go Roth while at 25% and some pretax when at 28% or higher.