My 170 experience
I've sailed h170s for about two years. I find the 170 to be comfortable, stable and forgiving compared to other dinghies. I sail primarily on a long, narrow (mile wide) lake. It gets dicey when the wind exceed 15k, but with a reef you should be able to handle up to 20k. You wouldn't want to go out in stronger winds unless you have a stout heart and the skills to match the conditions (I don't). The biggest problem I've experienced in 15-20k winds is irregular gusts (primarily north or south winds on an east-west lake) coming off points of land in narrow spots. I have to be very quick with tiller and mainsheet under such conditions to avoid being blown down. I've spooked my wife and kids on an occasion or two when I haven't been quite quick enough. Avoid these conditions if you want your family to enjoy their sailing experience. (BTW, my kids love to sit in the open transom with their feet in the water. If I could only get them to stop grabbing the tiller . . .)It's easy to rig and sail single handed. I've never tipped it so I can't comment on righting it. I suspect the 146 shares the 170s characteristics because they are of similar size and design. If you plan to sail mostly single or as a pair, the 146 may be the better choice. Personally, I like the extra room to take as many as six (which is a crowd, I'll admit) plus lunch, etc. Plus I can still single hand it with ease. If you want to teach your family to sail either would probably be a good choice.I have no experience with the other two boats you're considering. You will probably have less cockpit room with the Catalina if I remember it correctly from pictures. I didn't know anything about the Precision. Perhaps someone else has some experience with these others that they can share with you. Do your homework and take a test drive on each if possible, then pick the one that best suits your needs. Good luck!