The Fish-Rite Fishmaster 20 ft. 2008 is a flat-bottom design and the Fish-Rite Rivermaster 22 ft. 2008 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 - Fish-Rite Fishmaster 20 ft. 2008 at 20,0 ft versus Fish-Rite Rivermaster 22 ft. 2008 at 22,0 ft. Weight tells a clearer story for trailering families: the Fish-Rite Rivermaster 22 ft. 2008 tips the scales at 1 300 lbs - 550 lbs less than the Fish-Rite Fishmaster 20 ft. 2008 at 750 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 225 hp, the Fish-Rite Rivermaster 22 ft. 2008 has a 25-hp advantage over the Fish-Rite Fishmaster 20 ft. 2008's 200-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.
Bottom line: Performance buyers should lean toward the Fish-Rite Rivermaster 22 ft. 2008 and its 225-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Fish-Rite Fishmaster 20 ft. 2008 with its 200-hp rating is the more economical daily driver.