If my wife were to stop doing the things I like and start doing the things I don't, I'd still love her. We'd have issues and it's not unthinkable those issues could equate into the end of our relationship. So I guess in that sense, there are conditions to our love for one another.
How fortunate for the both of us that we fit so well together and can't imagine one of us doing anything differently than what we do now to mess with that balance. Thusly, given the "conditions" of our relationship, our personal preferences, and our habits with each other and so forth, I'd say I do love my wife .. unconditionally .. with conditions.
As for your own children, you love them unconditionally, as any normal parent would. I suppose the alternative there is, they get taken away because you're a bad parent.