This argument is about as irrelevant as is comparing Hercules C-130 to an Airbus A-380 cargo plane and deciding which is "better" only based on some of their stats.
Chronos was and is supposed to be a frontline freighter, designed and used during war time. Triton is newer, was designed, built and used by civvies after the Great War had ended, and Chronos freighters were most likely being phased out and replaced in military use by the Argo, which is pretty big, offers more protection for cargo - you can't blow out the container when the cargo is inside the ship. Bigger cargo still requires containers and stuff, but I would think big and expensive stuff like entire Ursas would be transported by destroyers anyway...
For civilian use, Triton wins. For frontline use, the Chronos is better as long as you require exposed cargo containers, but for most military purposes, a transport ship like Argo is better than any freighter, so...
I'd say as a freighter, Triton wins because "freight" is inherently civilian term. For transporting payload or military cargo in a hostile environment, Chronos is better.