The Xpress AWD18 2013 is a flat-bottom design and the Xpress XP20CC 2012 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 - Xpress AWD18 2013 at 18,0 ft versus Xpress XP20CC 2012 at 20,3 ft. Weight tells a clearer story for trailering families: the Xpress XP20CC 2012 tips the scales at 1 261 lbs - 511 lbs less than the Xpress AWD18 2013 at 750 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 115 hp, the Xpress XP20CC 2012 has a 45-hp advantage over the Xpress AWD18 2013's 70-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Xpress XP20CC 2012 is rated for 8 passengers, while the Xpress AWD18 2013 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Xpress XP20CC 2012 could be the deciding factor.
Bottom line: Choose the Xpress XP20CC 2012 if your priority is putting more people on the water - it handles 8 passengers and at 20,3 ft it has the deck room to back that rating up comfortably. The Xpress AWD18 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.