Full disclosure...I have the 23DVCC.
Just got to ride a 23 SE about a month ago. Sorry, but the ride is totally different. It is clear right away that the SE is a lighter boat with all of the good and bad that comes with that. The good is that is does take less HP to get it moving, is nimbler handling when fishing close to the rocks, is probably a little stabler when drifting due to the shallower deadrise.
However, and this is a big however, it does NOT handle like the DV in any kind of sea. Trim tabs CANNOT make up for this. Depending on where you are, this may not be a big deal (like the Chesapeake). For me, riding 20 miles out to Stellwagen, it is important.
Both boats are built like brick you-know-whats and will take far more punishment than you can take, so I don't think it's a safety difference.
Lastly, my buddy has a 23 Regulator and the 23 DV Parker does not have the ride of the Regulator. The Reg is heavier yet, with a degree or so more deadrise. The Reg is wetter, but even more forgiving than the Parker DV.
My boat before the Parker was an Eastern 22 CC which is, perhaps, the exact opposite of my current boat. Super light, shallow deadrise, etc. It was the perfect tool for fly fishing along the rocks of Mass. Only when I wanted to go offshore did it not make sense as a boat. The point is that the 23 SE and DV are different tools and you first need to define what your needs are. But, the ARE different no matter what anybody says.