The Crestliner Fish Hawk 1650 DC 2013 is a deep-V design and the Crestliner Grand Cayman 2685 I/O 2009 is a pontoon 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.
Size is the most obvious dividing line here. The Crestliner Grand Cayman 2685 I/O 2009 measures 25,0 feet overall (2009), giving it roughly 8,3 additional feet of deck space compared to the Crestliner Fish Hawk 1650 DC 2013 at 16,7 feet (2013). Weight tells a clearer story for trailering families: the Crestliner Grand Cayman 2685 I/O 2009 tips the scales at 3 400 lbs - 2 340 lbs less than the Crestliner Fish Hawk 1650 DC 2013 at 1 060 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 90 hp, the Crestliner Fish Hawk 1650 DC 2013 has a 87-hp advantage over the Crestliner Grand Cayman 2685 I/O 2009's 3-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 Grand Cayman 2685 I/O 2009 carries 35 gallons versus 20 gallons in the Crestliner Fish Hawk 1650 DC 2013. 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 Grand Cayman 2685 I/O 2009 is rated for 14 passengers, while the Crestliner Fish Hawk 1650 DC 2013 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Grand Cayman 2685 I/O 2009 could be the deciding factor.
Bottom line: Choose the Crestliner Grand Cayman 2685 I/O 2009 if your priority is putting more people on the water - it handles 14 passengers and at 25,0 ft it has the deck room to back that rating up comfortably. The Crestliner Fish Hawk 1650 DC 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.