The Crestliner Canadian 1850 2011 is a modified-V design and the Crestliner Super Hawk 1700 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 Canadian 1850 2011 at 18,2 ft versus Crestliner Super Hawk 1700 2012 at 17,1 ft. Weight tells a clearer story for trailering families: the Crestliner Canadian 1850 2011 tips the scales at 1 500 lbs - 200 lbs more than the Crestliner Super Hawk 1700 2012 at 1 300 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 175 hp, the Crestliner Canadian 1850 2011 has a 35-hp advantage over the Crestliner Super Hawk 1700 2012's 140-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 Canadian 1850 2011 carries 39 gallons versus 33 gallons in the Crestliner Super Hawk 1700 2012. 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 Canadian 1850 2011 is rated for 7 passengers, while the Crestliner Super Hawk 1700 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 Canadian 1850 2011 could be the deciding factor.
Bottom line: Choose the Crestliner Canadian 1850 2011 if your priority is putting more people on the water - it handles 7 passengers and at 18,2 ft it has the deck room to back that rating up comfortably. The Crestliner Super Hawk 1700 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.