Re: Catalina 22 or 25?
You should also go to catalina-capri-25s.org for more info on the 25. It's a very helpful forum dedicated to the 25' Catalina boats.
If you are asking about weight because you are curious about towing it you can read lots of threads on there. You need a truck to pull it on a trailer, not a car. I think the weight on trailer of a ready to go boat is normally over 6000lbs.
The 22' will be easier to rig at the dock too. The mast on a 25' is pretty heavy and it'll take practice for two people to de-rig and re-rig it.
Honestly I don't think that it would be fun to sail either of them off of a trailer every time you go sailing. I'd get a dinghy for that. If you want to use the trailer for cheap storage in the winter then I'd go with the one that better fits your needs.
boats that I sail on regularly: Pearson 28-2, Rondar 505, Yankee 30, Blanchard Junior