Both the Triton Boats TS-17 2010 and the Triton Boats TS-18 2012 are modified-V designs, both built in aluminium, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department - Triton Boats TS-17 2010 at 17,2 ft versus Triton Boats TS-18 2012 at 18,2 ft. At 990 lbs and 1 060 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 75 hp, the Triton Boats TS-18 2012 has a 25-hp advantage over the Triton Boats TS-17 2010's 50-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 19 gal and 19 gal - so range won't be a tiebreaker here.
Both boats are rated for 4 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.
Bottom line: Performance buyers should lean toward the Triton Boats TS-18 2012 and its 75-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Triton Boats TS-17 2010 with its 50-hp rating is the more economical daily driver.