small sedan vs. van
I have a cal 33 which I would recommend to almost anyone. I believe cal are strong and stiff boat with good sailing characteristic.
Irwin, in my openion, is just a different class of sailboat. It should be roomier but perhaps more slouggish, hence the analogy os small sedan and van
I will also recommend pearson and tartan for this range, but cal should has a better price. good luck and good sailing.