Here are some of my thoughts on the topic:
When discussing "love" as it is in the Word, three common verses are most often brought up.
The first is John 3:16. "God so loved the world, that he gave his only begotten son that whosever believeth on him should not perish, but have everlasting life." This verse does not say God loves everyone in the world; it says he loved the world. When you read Mat 13:38 you see the world is defined as "the field" where people (good seed and tares) are planted.
I bring these things up because often people believe God loves everyone because of what this verse "seems" to say. Yet when we go to Romans 9:13 as well as Proverbs 6:16-19 we see examples of individuals and types of people God hates.
The second verse often quoted is 1 John 4:8: "He that loveth not knoweth not God; for God is love." This is absolutely correct, however "love" is just one of the many things God is. God is love, but love is not God. I'm sure most of us understand that God's love is different from man's love, even if (as I'm also sure of) none of us fully understand it.
The third verse (actually a chapter) is 1 Cor 13. I use the KJV, and it doesn't say "love", but rather charity. No matter.... I don't have a problem with people defining "charity" as love. It certainly isn't "charity" as we think of in a human reference (giving to the poor) because Paul says in the 3rd verse it isn't that. There is much to talk about in this chapter, but one concept I'd like people think about in this chapter is verse 6: "rejoiceth not in iniquity, but rejoiceth in the truth." We get a list of things charity (love) isn't and doesn't do, and then it says it rejoices in the truth. Jesus said he was "the Truth". In any sense, there is a connection between charity (love) and truth, and so few others have brought that up.
Last, for now, I'd like to bring up a verse that defines love: "Hereby perceive we the love of God, because he laid down his life for us: and we ought to lay down our lives for the brethren." 1 John 3:16.
Why? Well, if we believe that if Christ is in us as individuals, we also must realize we are not the only ones. Yes, Jesus loves us as individual believers, but he also has that same love for your brothers as he does for you. There are verses that say that if you love a brethren you love Christ himself.
What about those that aren't brethren? Does God love them? Should we? I'd say the answer is no. Again, God doesn't love everyone. However, the big question is... Do you know who your brethren are? That aithest you know.... How do you know he's not really a brother that Jesus hasn't brought into the fold yet? In God's scope who knows the end from the beginning, he is still a brother who hasn't manifested himself yet. He may be a brother, or he might be a child of the devil. Do you know for sure? I'd say we don't.
Just some thoughts....