The Lund 1236 2010 is a flat-bottom design and the Lund A 14 2010 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 - Lund 1236 2010 at 11,9 ft versus Lund A 14 2010 at 14,1 ft. At 140 lbs and 194 lbs respectively, both sit in a similar weight class - either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling - 10 hp for the Lund 1236 2010 and 15 hp for the Lund A 14 2010. 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 Lund A 14 2010 is rated for 4 passengers, while the Lund 1236 2010 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Lund A 14 2010 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Lund A 14 2010 comes in at 13 lbs per hp versus 14 lbs per hp for the Lund 1236 2010. The lower the ratio the more explosive the acceleration - meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
Bottom line: Choose the Lund A 14 2010 if your priority is putting more people on the water - it handles 4 passengers and at 14,1 ft it has the deck room to back that rating up comfortably. The Lund 1236 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.