The Eliminator 340 Eagle XP 2012 is a modified-V design and the Eliminator 36 ft. Daytona Speedster 2009 is a catamaran 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 - Eliminator 340 Eagle XP 2012 at 33,9 ft versus Eliminator 36 ft. Daytona Speedster 2009 at 35,8 ft. Weight tells a clearer story for trailering families: the Eliminator 36 ft. Daytona Speedster 2009 tips the scales at 7 800 lbs - 200 lbs less than the Eliminator 340 Eagle XP 2012 at 7 600 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.
For family outings this is probably the sharpest distinction between the two. The Eliminator 340 Eagle XP 2012 is rated for 6 passengers, while the Eliminator 36 ft. Daytona Speedster 2009 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Eliminator 340 Eagle XP 2012 could be the deciding factor.
Bottom line: Choose the Eliminator 340 Eagle XP 2012 if your priority is putting more people on the water - it handles 6 passengers and at 33,9 ft it has the deck room to back that rating up comfortably. The Eliminator 36 ft. Daytona Speedster 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.