The G3 Boats 1756 CCT DLX 2010 is a tunnel hull design and the G3 Boats Eagle 190 2011 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 - G3 Boats 1756 CCT DLX 2010 at 17,1 ft versus G3 Boats Eagle 190 2011 at 18,7 ft. Weight tells a clearer story for trailering families: the G3 Boats Eagle 190 2011 tips the scales at 1 150 lbs - 320 lbs less than the G3 Boats 1756 CCT DLX 2010 at 830 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 150 hp, the G3 Boats Eagle 190 2011 has a 80-hp advantage over the G3 Boats 1756 CCT DLX 2010's 70-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the G3 Boats Eagle 190 2011 carries 21 gallons versus 12 gallons in the G3 Boats 1756 CCT DLX 2010. 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 G3 Boats 1756 CCT DLX 2010 is rated for 5 passengers, while the G3 Boats Eagle 190 2011 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the G3 Boats 1756 CCT DLX 2010 could be the deciding factor.
Bottom line: Choose the G3 Boats 1756 CCT DLX 2010 if your priority is putting more people on the water - it handles 5 passengers and at 17,1 ft it has the deck room to back that rating up comfortably. The G3 Boats Eagle 190 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.