The truth is, the women I've clicked with I've clicked with whether or not we had any of those things in common. After the initial physical attraction, that whole chemistry thing comes into play and there's really no way to anticipate with whom that's going to crop up. And while common interests are great and all, the most successful relationships I've been in have been less rooted in us liking the same things, and more in embracing the reality that we like different things. Just because I don't love Ethiopian food and German opera doesn't mean I won't love experiencing those things with you. (Though really, can I talk you into German food and Ethiopian opera...just this once?)
Ideally, we'll go from liking each others pictures to trading a couple of emails to a phone call to set up coffee or a drink. After that...who knows? Maybe we'll be lucky.