The Triton Boats 2070 CC 2009 is a modified-V design and the Triton Boats DV 18 Magnum 2009 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 - Triton Boats 2070 CC 2009 at 20,0 ft versus Triton Boats DV 18 Magnum 2009 at 18,0 ft. At 1 170 lbs and 1 250 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.
The power gap is worth calling out. Rated to 150 hp, the Triton Boats DV 18 Magnum 2009 has a 35-hp advantage over the Triton Boats 2070 CC 2009's 115-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 6 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 Triton Boats DV 18 Magnum 2009 and its 150-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Triton Boats 2070 CC 2009 with its 115-hp rating is the more economical daily driver.