Both the Go-Devil 20 x 44 2013 and the Go-Devil 20 x 54 SD 2013 are flat-bottom 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 - Go-Devil 20 x 44 2013 at 20,0 ft versus Go-Devil 20 x 54 SD 2013 at 20,0 ft. Weight tells a clearer story for trailering families: the Go-Devil 20 x 54 SD 2013 tips the scales at 660 lbs - 110 lbs less than the Go-Devil 20 x 44 2013 at 550 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 - 45 hp for the Go-Devil 20 x 44 2013 and 50 hp for the Go-Devil 20 x 54 SD 2013. 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.
Bottom line: The Go-Devil 20 x 44 2013 and Go-Devil 20 x 54 SD 2013 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.