Knowledge is a great thing to have and allows people to do some amazing things. However, being loveable allows you to make connections, get jobs easier, and create lasting relationships. In the end it is better and more beneficial to be loveable than knowledgable. Being loveable will allow you to be a leader.
I think that while it's important to be lovable, it's far more important to be knowledgeable because you can sustain yourself and your family using your knowledge. You can be loved by all, but if you have nothing, I don't think you would enjoy life very much. I guess the trick here is to have a good balance between the two.