The Sunsation 32 SS Dominator 2009 is a modified-V design and the Sunsation Sunsation 288 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 - Sunsation 32 SS Dominator 2009 at 31,0 ft versus Sunsation Sunsation 288 2008 at 28,0 ft. Weight tells a clearer story for trailering families: the Sunsation 32 SS Dominator 2009 tips the scales at 7 100 lbs - 2 600 lbs more than the Sunsation Sunsation 288 2008 at 4 500 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 - 600 hp for the Sunsation 32 SS Dominator 2009 and 600 hp for the Sunsation Sunsation 288 2008. 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. Fuel capacity breaks the other way: the Sunsation 32 SS Dominator 2009 carries 145 gallons versus 110 gallons in the Sunsation Sunsation 288 2008. 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 Sunsation 32 SS Dominator 2009 is rated for 9 passengers, while the Sunsation Sunsation 288 2008 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sunsation 32 SS Dominator 2009 could be the deciding factor.
Bottom line: Choose the Sunsation 32 SS Dominator 2009 if your priority is putting more people on the water - it handles 9 passengers and at 31,0 ft it has the deck room to back that rating up comfortably. The Sunsation Sunsation 288 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.