Personal choice
Which is better? O'Day 22 or 222, well...it really depends on what your needs are. The 22 has a more "big-Boat" style cabin, as others have mantioned, she has a head with some privacy (still open to v-berth), a hanging locker (small, but true), and may be much less expensive. The 222 will be newer, might be in better condition, has a more open interior, head is under the aft end of the v-berth.The 22 came with 2 different rigs, 1973-79 models have a masthead rig (190 sqft), the 1980-83 models have the taller, fractional rig (196 sqft). Also 2 different keels, 1973-78 models had the 1'11" draft fixed shoal keel, 1979-83 models had the 1'4" draft K/CB design, draft was 4'3" bd-dn.The 222 had a fractional rig (207 sqft) all years (1984-89) and a K/CB with draft of 1'8" / 4'8".If you plan to trailer your boat, one of the K/CB models will be easier to get on/off a trailer. The 22 had a lighter mast than the 222 and so stepping/unstepping may be easier. Trailering weight will be 2200# for the 222 and the 22 will be approx: 2000-2200# (1973-78 approx: 2000, 1979 approx: 2100#, 1980-83 approx: 2183#). I'd add at least 100-200# to these weights for any gear you will have aboard, and then add the weight of the trailer.