Attraction is important. And there are a lot of qualities that can make a person attractive, so this is painting with a very broad brush but I have to have a sense of it for it to work otherwise it just won't. Attraction will get my attention and the rest will help to reel my in. However attraction means very little if they don't possess other good qualities.

After how literally every single one of my relationships ended, honesty is extremely important.

Shared interests is third, though close with quite a few. But I think it's an important factor to bond together at the starting stages of dating someone to have things you like to do together, obviously.