The Kingfisher 1800 Trio Tiller 2012 is a modified-V design and the Kingfisher 1825 Falcon 2013 is a deep-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 - Kingfisher 1800 Trio Tiller 2012 at 17,7 ft versus Kingfisher 1825 Falcon 2013 at 18,0 ft. At 1 100 lbs and 1 100 lbs respectively, both sit in a similar weight class - either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 115 hp, the Kingfisher 1825 Falcon 2013 has a 45-hp advantage over the Kingfisher 1800 Trio Tiller 2012's 70-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 20 gal and 20 gal - so range won't be a tiebreaker here.
Both boats are rated for 5 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 Kingfisher 1825 Falcon 2013 comes in at 10 lbs per hp versus 16 lbs per hp for the Kingfisher 1800 Trio Tiller 2012. 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.
Bottom line: Performance buyers should lean toward the Kingfisher 1825 Falcon 2013 and its 115-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Kingfisher 1800 Trio Tiller 2012 with its 70-hp rating is the more economical daily driver.