I'm not sure I'd even bother comparing a CD 22 and the Seasport 22. While some folks appear to be implying that Seasport has this magical ability to go farther and in tougher conditions, that really isn't the case. However, I will concede with their hull design they will go faster in in chop, which certainly cuts down on travel time. I have been on a 24 footer before and it really did have a nice soft ride. The cabin in the CD-22 is better than it is in the SS-22 - as is the most important part; where you fish!
I have looked at a number of Seasports over the years and in my personal opinion there really is only one that I drool over and that is the 27 pilot. In that sized boat, it is really something - especially with the diesel. Unfortunately, it is expensive to operate and too much money for a HS Math Teacher to buy.......Nor will it really fit in my shop. Oh well, in my opinion just a having a nice boat makes life grand