That makes a lot of sense. It is so easy to immediately "get" Dean. It takes a bit more time to see that Sam isn't just a whiney, emo boy.

Personally, I'm a Dean/Jensen girl. But I love Sam because Dean does. Neither of the brothers would make it without the other one. That's why it surprises me if people really don't like one of the boys. You have to understand how connected they are, otherwise they don't make sense.