For what its worth - I think that the Catalinas are better looking boats than the newer Beneteaus - and I have a sneaking suspicion that there build quiality has been getting better over the last little while - which I don't think is happening with Beneteau.
There are websites for both brands -
Catalina Owners.com for owners sailing production sailboats Beneteau sailboat owners - probably worth asking around on those sites
Good luck !