I had the same question...
I had the same question when I was looking. Fortunately, depending on your priorties, the choices narrow considerably. If you want the head to be behind a door and not in the middle of the cabin (as the Admiral had insisted upon), your only real choice is the Oday 23. I was unable to locate any other boat in that size range with that feature. If this is not a crucial factor for you, then the choice is between a swing keel type boat (where the ballast is in the moving centerboard or keel), or a keel/centerboard combo (where the ballast is integral to the boat, and the centerboard is relatively lightweight). The Catalina 22 is the prime example of the former. I really like the boat; a sweet sailor, and parts/advice/factory support are all available. The old pop-tops are great. Good resale value. I don't know much about Hunter, but if you like more contemporary styling, they seem to be popular. One other thing to consider: how much "cruising" will you really do? None of these boats is particularly comfortable for more than two full size people to sleep in for more than a weekend. Also, in order to fit the cabin accomodations within the small footprint, the cockpits tend to be smaller. If you are really only going to be daysailing, I would consider searching out boats that have bigger cockpits with less emphasis on berths and galleys (like the Rhodes 19, or Oday Daysailer or Tempest). For myself, I thought long and hard and came to the conclusion that I would be doing mostly daysailing, with the very occasional overnighter. I bought an Oday 23 because of the separate head (I can't stress enough how important that is to my wife), the keel/centerboard arrangement, and the relatively big cockpit. Good luck.