I believe Love is in levels. The more you know a person, the more you can love the person. If for instance, you meet a stranger for the first time, you are most likely going to be neutral towards him. But if you get a call from your mum saying that person is your cousin, you immediately feel an attraction towards the person. This shows that love is dependent on relationship.
Having said this, on the issue of love conquering all, it depends on what “all” has up their sleeve on any given day. Love is dependent on the two people involved in the relationship.
So depending on how much they love themselves, sometimes love wins. Sometimes 'All' does. So the answer is under the right circumstances.
You have a good point here @chuksdozie2004, but please I must say something here. I think what determines whether love conquers or not is not the gravity of what is to be conquered, but the kind of love involved. When God sent his son to die for us, the gravity of what was to be conquered was THE SINS OF THE WHOLE WORLD, but yet God's love conquered it. If God's love conquered the sins of the whole world, then tell me what that love can't conquer.
God's love is more powerful than anything it comes against. Whether it be hatred, or sickness, or even death, God's love is above.
From Romans 8 vs 35-39, we can see that nothing can separate us from the love of God, not even death, angels, demons, this life or the life to come. That's the power of God's love!!!
Yea I agree that there are degrees to love. Like John 3:16. He loved the world that much which is beyond words to describe when you look at that verse.
Also Scripture says that God is love. Meaning God=Love. Now I'm talking the love that is of God. That love is indeed the greatest thing ever. But then I do agree that the world's version of love CAN be conquered since it is of the world and doesn't have all power. Hope that makes sense.