The Crestliner CXJ 2070 SC 2008 is a modified-V design and the Crestliner Raptor 1750 DC 2012 is a deep-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 - Crestliner CXJ 2070 SC 2008 at 20,0 ft versus Crestliner Raptor 1750 DC 2012 at 17,7 ft. At 1 390 lbs and 1 400 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 150 hp, the Crestliner Raptor 1750 DC 2012 has a 35-hp advantage over the Crestliner CXJ 2070 SC 2008's 115-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Crestliner Raptor 1750 DC 2012 carries 33 gallons versus 21 gallons in the Crestliner CXJ 2070 SC 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Crestliner CXJ 2070 SC 2008 is rated for 7 passengers, while the Crestliner Raptor 1750 DC 2012 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner CXJ 2070 SC 2008 could be the deciding factor.
Bottom line: Choose the Crestliner CXJ 2070 SC 2008 if your priority is putting more people on the water - it handles 7 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The Crestliner Raptor 1750 DC 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.