The Gator Bay Gator Bay 1900 RG 2011 is a modified-V design and the Gator Bay Gator Bay 2110 2008 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 - Gator Bay Gator Bay 1900 RG 2011 at 19,0 ft versus Gator Bay Gator Bay 2110 2008 at 21,8 ft. Weight tells a clearer story for trailering families: the Gator Bay Gator Bay 2110 2008 tips the scales at 1 920 lbs - 540 lbs less than the Gator Bay Gator Bay 1900 RG 2011 at 1 380 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 250 hp, the Gator Bay Gator Bay 2110 2008 has a 75-hp advantage over the Gator Bay Gator Bay 1900 RG 2011's 175-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Gator Bay Gator Bay 2110 2008 carries 87 gallons versus 40 gallons in the Gator Bay Gator Bay 1900 RG 2011. 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 Gator Bay Gator Bay 2110 2008 is rated for 7 passengers, while the Gator Bay Gator Bay 1900 RG 2011 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Gator Bay Gator Bay 2110 2008 could be the deciding factor.
Bottom line: Choose the Gator Bay Gator Bay 2110 2008 if your priority is putting more people on the water - it handles 7 passengers and at 21,8 ft it has the deck room to back that rating up comfortably. The Gator Bay Gator Bay 1900 RG 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.