The Stanley Boats Islander Runabout 21 ft. Center Console 2010 is a deep-V design and the Stanley Boats Pulsecraft 24 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 - Stanley Boats Islander Runabout 21 ft. Center Console 2010 at 21,0 ft versus Stanley Boats Pulsecraft 24 2011 at 24,0 ft. Weight tells a clearer story for trailering families: the Stanley Boats Pulsecraft 24 2011 tips the scales at 2 500 lbs - 527 lbs less than the Stanley Boats Islander Runabout 21 ft. Center Console 2010 at 1 973 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 share a closely matched power ceiling - 200 hp for the Stanley Boats Islander Runabout 21 ft. Center Console 2010 and 200 hp for the Stanley Boats Pulsecraft 24 2011. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
For family outings this is probably the sharpest distinction between the two. The Stanley Boats Islander Runabout 21 ft. Center Console 2010 is rated for 8 passengers, while the Stanley Boats Pulsecraft 24 2011 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Stanley Boats Islander Runabout 21 ft. Center Console 2010 could be the deciding factor.
Bottom line: Choose the Stanley Boats Islander Runabout 21 ft. Center Console 2010 if your priority is putting more people on the water - it handles 8 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Stanley Boats Pulsecraft 24 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.