The Princecraft Brio 15 2011 is a pontoon design and the Princecraft Sport 172 2011 is a modified-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

On paper these two are close siblings in the size department - Princecraft Brio 15 2011 at 15,1 ft versus Princecraft Sport 172 2011 at 17,4 ft. Weight tells a clearer story for trailering families: the Princecraft Sport 172 2011 tips the scales at 1 225 lbs - 121 lbs less than the Princecraft Brio 15 2011 at 1 104 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The power gap is worth calling out. Rated to 115 hp, the Princecraft Sport 172 2011 has a 100-hp advantage over the Princecraft Brio 15 2011's 15-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

Both boats are rated for 6 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

At this size, power-to-weight ratio matters more than outright horsepower. The Princecraft Sport 172 2011 comes in at 11 lbs per hp versus 74 lbs per hp for the Princecraft Brio 15 2011. The lower the ratio the more explosive the acceleration - meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.