The Lund 1825 Rebel XL SS 2010 is a modified-V design and the Lund 1852MT Jon 2012 is a flat-bottom 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 1825 Rebel XL SS 2010 at 18,3 ft versus Lund 1852MT Jon 2012 at 18,0 ft. Weight tells a clearer story for trailering families: the Lund 1825 Rebel XL SS 2010 tips the scales at 895 lbs - 420 lbs more than the Lund 1852MT Jon 2012 at 475 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 125 hp, the Lund 1825 Rebel XL SS 2010 has a 60-hp advantage over the Lund 1852MT Jon 2012's 65-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 5 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: Performance buyers should lean toward the Lund 1825 Rebel XL SS 2010 and its 125-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Lund 1852MT Jon 2012 with its 65-hp rating is the more economical daily driver.