A seriously good sense of humor. Life is boring sometimes, and hard, but someone who can still find time to be humorous or see the funny or bright side of things is wonderful. I don't mean being 'on' all the time, but generally unhappy people make bad partners

.
Sincerity. Sincerity of character. Sincerely interested in you, like Venray said.
(I don't mean everyday all day long someone has to be interested in everything you do

). But everybody can feel when it's not genuine. A person not being sincerely interested in you doesn't make them a bad catch, but perhaps just a 'better' catch for someone else they can cultivate a sincere interest in ('glass half-full' logic
😀). And also like Venray said, someone who makes you feel good about yourself. As long as you do the same for them as well.
A good catch is someone who is able to receive the love you put out, and likewise return in their way. Many of us have all been guilty of selecting partners or not being in a healthy state of mind ourselves to give or receive love in a healthy manner. A good catch is someone whom you have a chance to participate in the give-and-take flow of love (not just all take or all give
🙂).

. I don't really know what a good catch is per se. Best way for one to find out what a good catch is, is by truly being one yourself I guess.
Also good taste in music (but that's just my opinion
😀).
Also someone you can talk to and be silent with
🙂
Post. Over.