Think it really depends on what you want the camera to do. In my case I wanted a point and shoot to film our new baby, so is primarily going to be used indoors - I went for the 22.
If widescreen is a major factor for you then I would go for the 33
If you look at
www.camcorderinfo.com there is a forum specifically for the 19/22/33 models. Most people currently favour the 22 but there probably isn't a lot between them.
Either way as far as I'm concerned a DV camera is for taking moving pictures, if you want to take stills then buy a stills camera.
HTH
Jim