Assuming that all weight considerations are accounted for, that the two axles can handle the weight of the boat, fuel, stuff and the trailer itself. My feeling would be to go with the 2 axle if you plan on just trailering around town. But if you are planning any longer huals then I would definitely recommend the 3 axle. The scrubbing of the tires in tight turns is an issue, but I would be nervous having that much weight on only 2 axles. Also if there is a blow out then you're down to only one tire on that side and that is definitely a bad situation.