The words we use to describe love are really pretty silly. The thing that gets me most riled up is unconditional love, particularly when it is held up as an ideal rather than an option. Unconditional love, if you look at the literal interpretation of the words, clearly implies love regardless of any change in conditions. This is often utter lunacy, sometimes is just wrong, and certainly doesn't deserve to put upon any sort of pedestal. Love of a person regardless of their characteristics bothers me in the same way faith does - fundamentally it is about holding a viewpoint regardless of any reasons to the contrary. You *should* change your opinion of someone if they decide to stab you with a fork, blow up a bunch of random folks, dump toxic waste into a river, or make really bad yo momma jokes.
Now of course people don't usually mean unconditional love when they say unconditional love. They usually mean "I love you a lot and I will keep doing so even if you do things I think are weird or silly." They reserve the right to stop loving should the target of said love do any of the heinous things described above. In this way unconditional is abused in much the way literally is; we all know that what is being said is not what is meant but we understand anyway because we have context. I am one of those people that doesn't mind the word literally being used to mean 'sort of like this but not exactly' because I can tell when it is being used this way. Unconditional love though bothers me because people often seem to think it is literally true when it is clear that this is not the case. (Using literally in its dictionary sense here, in case you need clarification.)
Fundamentally unconditional love robs the relationship of much of its meaning since it implies a love based around a body, a sack of chromosomes, a bloodline, or a particular sack of meat, rather than basing it on the personality and actions of the person in question. If someone claims to love me unconditionally they are claiming to love the body sitting in my chair and not my motivations, my passion, my wit, my thoughts, or my dreams. Those things all can change to become something terrible, twisted, and terrifying and I very much want to be loved for all that I am, not just for the somewhat temporally continuous mass that my mind inhabits.
Parents may well take umbrage at all this but examined closely even parental love is very unlikely to be unconditional. You might well feel an unconditional responsibility towards your children, or an unconditional concern about them, but unconditional love implies that there is nothing your children could do to disrupt that love and thinking that no such thing exists probably implies more about your lack of imagination than anything else. My love for my child is not unconditional. The conditions under which I would stop loving her are extreme indeed but they exist; I certainly do not expect to ever encounter them and I hope very much I never learn my exact limits but I know those limits are out there somewhere.
I don't want to be loved unconditionally in the same way that I don't want to be needed. I want to be loved conditionally and wanted. Both those things imply an active choice that can be revoked and that very possibility of revoking them makes the fact that they exist now a thousand times more sweet.