The Starcraft Marine 2119 I/O RE 2010 is a modified-V design and the Starcraft Marine Crossover 201 SCX OB 2013 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 - Starcraft Marine 2119 I/O RE 2010 at 19,2 ft versus Starcraft Marine Crossover 201 SCX OB 2013 at 20,3 ft. Weight tells a clearer story for trailering families: the Starcraft Marine Crossover 201 SCX OB 2013 tips the scales at 2 715 lbs - 615 lbs less than the Starcraft Marine 2119 I/O RE 2010 at 2 100 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 300 hp, the Starcraft Marine 2119 I/O RE 2010 has a 75-hp advantage over the Starcraft Marine Crossover 201 SCX OB 2013's 225-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Starcraft Marine Crossover 201 SCX OB 2013 carries 50 gallons versus 45 gallons in the Starcraft Marine 2119 I/O RE 2010. 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 Starcraft Marine Crossover 201 SCX OB 2013 is rated for 12 passengers, while the Starcraft Marine 2119 I/O RE 2010 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine Crossover 201 SCX OB 2013 could be the deciding factor.
Bottom line: Choose the Starcraft Marine Crossover 201 SCX OB 2013 if your priority is putting more people on the water - it handles 12 passengers and at 20,3 ft it has the deck room to back that rating up comfortably. The Starcraft Marine 2119 I/O RE 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.