Both the Seaway Boats 21 Seafarer 2013 and the Seaway Boats 21 Sportsman 2012 are deep-V designs, the first built in composite and the second in fibreglass, 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 - Seaway Boats 21 Seafarer 2013 at 21,0 ft versus Seaway Boats 21 Sportsman 2012 at 21,0 ft. Weight tells a clearer story for trailering families: the Seaway Boats 21 Seafarer 2013 tips the scales at 2 300 lbs - 500 lbs more than the Seaway Boats 21 Sportsman 2012 at 1 800 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.

Both boats share a closely matched power ceiling - 90 hp for the Seaway Boats 21 Seafarer 2013 and 90 hp for the Seaway Boats 21 Sportsman 2012. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.

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.