The Starcraft Marine 1800 IO Fish 2008 is a modified-V design and the Starcraft Marine Majestic 256 2011 is a pontoon 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 Starcraft Marine Majestic 256 2011 measures 25,3 feet overall (2011), giving it roughly 7,3 additional feet of deck space compared to the Starcraft Marine 1800 IO Fish 2008 at 18,0 feet (2008). Weight tells a clearer story for trailering families: the Starcraft Marine Majestic 256 2011 tips the scales at 2 600 lbs - 875 lbs less than the Starcraft Marine 1800 IO Fish 2008 at 1 725 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 200 hp, the Starcraft Marine Majestic 256 2011 has a 196-hp advantage over the Starcraft Marine 1800 IO Fish 2008's 4-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 30 gal and 30 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Starcraft Marine Majestic 256 2011 is rated for 14 passengers, while the Starcraft Marine 1800 IO Fish 2008 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine Majestic 256 2011 could be the deciding factor.
Bottom line: Choose the Starcraft Marine Majestic 256 2011 if your priority is putting more people on the water - it handles 14 passengers and at 25,3 ft it has the deck room to back that rating up comfortably. The Starcraft Marine 1800 IO Fish 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.