The Crestliner C 2070 V 2006 is a modified-V design and the Crestliner Kodiak 14 Tiller 2013 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.
Size is the most obvious dividing line here. The Crestliner C 2070 V 2006 measures 20,0 feet overall (2006), giving it roughly 5,3 additional feet of deck space compared to the Crestliner Kodiak 14 Tiller 2013 at 14,8 feet (2013). Weight tells a clearer story for trailering families: the Crestliner C 2070 V 2006 tips the scales at 800 lbs - 215 lbs more than the Crestliner Kodiak 14 Tiller 2013 at 585 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.
Both boats share a closely matched power ceiling - 60 hp for the Crestliner C 2070 V 2006 and 40 hp for the Crestliner Kodiak 14 Tiller 2013. 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 Crestliner C 2070 V 2006 is rated for 8 passengers, while the Crestliner Kodiak 14 Tiller 2013 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner C 2070 V 2006 could be the deciding factor.
Bottom line: Choose the Crestliner C 2070 V 2006 if your priority is putting more people on the water - it handles 8 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The Crestliner Kodiak 14 Tiller 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.