Here's another angle - whether you're single or dual role, your compensation ought to be adequate to achieve several financial goals, which will be partly dependant on having a pension vs a 401k. Here they are:
-Room and board (obviously)
-The ability to max out your 401k or other deferred comp options. Retirees grossly underestimate their financial needs in retirement. You'll need at least 100% of your final yearly salary to live well. Assuming you have enough in deferred comp to provide this, inflation will quickly erode your purchasing power. Many make the mistake of putting 100% of their post retirement funds in fixed income securities or maybe a bond fund (the intermediate term bond index consistently outperforms any other bond index over the long term, btw

) to provide post retirement income, not realizing that the principal still needs to grow, at least at the pace of inflation. a small allocation in the total market stock index, for example, should accomplish this.
-The ability to put 20% down on a house. This saves the expense of mortgage insurance. Paying more than 20%, however, is foolish, as is paying extra into the principal. Those funds would be much better spent in an investment account that outperforms the interest rate of the mortgage. those funds will be worth way more than the interest you would otherwise save on the mortgage, and extra payments into the principal aren't even tax deductible. Most importantly, if you're ever out of work for a period of time, you can turn to that investment account to pay the mortgage in the interim.
-For those earning a pension, that benefit also needs to grow, and you'll likely be paying more for post retirement medical benefits as well. Let's say your pension benefit is 150k/yr (A 401k would need to have 3 million in a bond fund throwing of 5% yearly to match that). A good strategy would be to have at least 150k in a 457 or whatever invested moderately aggressively in a stock index fund to grow while also compensating for inflation, to add to the pension benefit. More money would be desired, though, to also provide income for medical expenses.
Don't take my word for it. Read anything and everything written by Ric Edelman. Visit his site as well. Just trying to help.