I keep a spreadsheet with AE aircraft data and run some formulas in order to compare planes. The formulas result in numbers where the smaller the numbers the better.
Both aircraft are very similar in the end. In my chart, they are actually tided at 21 points.
Nevertheless in a simple comparison (and considering the formulas used), In a 4000 mile route the 747-200B is US $5.83 cheaper per passenger than the DC-10-30, and in a 2000 mile route the 747 advantage goes down to just US $1.74
In theory the DC-10's advantage on fuel consumption is not enough to beat the 747 larger number of passengers, except on very short routes, where the 747 has to stay in the ground for 30 minutes more than the DC-10