I would prefer the triples..with that said, look at what your max gross weight loaded will be, if you can get 2 axles (and tires and springs) to carry that much weight at 75% of thir rated max..they will haul the load no problem and live a nice long life..if you exceed that 75% threshold, there is a chance you could have more flats, more broken/bent parts..Just what I have found from years of towing..We have huge frost heaves up here,big enough to easily launch a loaded trailer into the air, very common to bend axles/ break springs and such, at least with the tripple if you did bend an axle/break a spring, you could short chain that axle after pulling the tires and be able to keep on your way even if you had to reduce speed by 10-20 mph....