Both the Crestliner CXJ Series 2070 CC 2009 and the Crestliner Sportsman 18 SS 2008 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 - Crestliner CXJ Series 2070 CC 2009 at 20,0 ft versus Crestliner Sportsman 18 SS 2008 at 18,0 ft. Weight tells a clearer story for trailering families: the Crestliner CXJ Series 2070 CC 2009 tips the scales at 1 390 lbs - 720 lbs more than the Crestliner Sportsman 18 SS 2008 at 670 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 115 hp, the Crestliner CXJ Series 2070 CC 2009 has a 65-hp advantage over the Crestliner Sportsman 18 SS 2008's 50-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 7 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 Crestliner CXJ Series 2070 CC 2009 and its 115-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Crestliner Sportsman 18 SS 2008 with its 50-hp rating is the more economical daily driver.