Being funny isn't the most important thing, because not everyone has a good sense of humor, sometimes not even a sense of humor. If it's the person you are, joking around all the time, then that's your personality and you can't really change that about yourself. It also comes down to the situation that you are in, I've seen people make jokes at the wrong time and that is just going too far.
As for being interesting, that is important. I don't think me or anyone else would want to be stuck with a boring person, because that would really grind my gears and also make me quite miserable. I'm not saying that everything that comes out of their mouth has to be interesting, but that most of the things coming out their mouth shouldn't bore me.