The Eastern 27 Islander 2013 is a modified-V design and the Eastern Eastern 27 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.
On paper these two are close siblings in the size department - Eastern 27 Islander 2013 at 27,3 ft versus Eastern Eastern 27 2010 at 26,3 ft. Weight tells a clearer story for trailering families: the Eastern 27 Islander 2013 tips the scales at 8 000 lbs - 3 200 lbs more than the Eastern Eastern 27 2010 at 4 800 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.
Both boats are rated for 8 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Eastern 27 Islander 2013 and Eastern Eastern 27 2010 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.