The Parker Boats 2300 T Big Bay 2011 is a modified-V design and the Parker Boats 2310 DV Walkaround 2008 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 - Parker Boats 2300 T Big Bay 2011 at 23,0 ft versus Parker Boats 2310 DV Walkaround 2008 at 23,0 ft. Weight tells a clearer story for trailering families: the Parker Boats 2310 DV Walkaround 2008 tips the scales at 4 288 lbs - 1 388 lbs less than the Parker Boats 2300 T Big Bay 2011 at 2 900 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 - 300 hp for the Parker Boats 2300 T Big Bay 2011 and 300 hp for the Parker Boats 2310 DV Walkaround 2008. 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. Fuel capacity breaks the other way: the Parker Boats 2310 DV Walkaround 2008 carries 150 gallons versus 65 gallons in the Parker Boats 2300 T Big Bay 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 7 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: The Parker Boats 2300 T Big Bay 2011 and Parker Boats 2310 DV Walkaround 2008 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.