The Baja Marine 247 Islander (2008) 2007 is a modified-V design and the Baja Marine 277 Islander 2010 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.
Size is the most obvious dividing line here. The Baja Marine 277 Islander 2010 measures 27,4 feet overall (2010), giving it roughly 3,4 additional feet of deck space compared to the Baja Marine 247 Islander (2008) 2007 at 24,0 feet (2007). Weight tells a clearer story for trailering families: the Baja Marine 277 Islander 2010 tips the scales at 5 100 lbs - 800 lbs less than the Baja Marine 247 Islander (2008) 2007 at 4 300 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 600 hp, the Baja Marine 277 Islander 2010 has a 175-hp advantage over the Baja Marine 247 Islander (2008) 2007's 425-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Baja Marine 277 Islander 2010 carries 101 gallons versus 80 gallons in the Baja Marine 247 Islander (2008) 2007. 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 Baja Marine 277 Islander 2010 is rated for 10 passengers, while the Baja Marine 247 Islander (2008) 2007 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Baja Marine 277 Islander 2010 could be the deciding factor.
Bottom line: Choose the Baja Marine 277 Islander 2010 if your priority is putting more people on the water - it handles 10 passengers and at 27,4 ft it has the deck room to back that rating up comfortably. The Baja Marine 247 Islander (2008) 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.