As others have pointed out, physical attraction is a factor, as well as how well you naturally get along. Affecting both friendship and love.

But, I think, over the course of people's lives, it's very natural to go through several stages of wanting to love versus just wanting to be friends. Sometimes you get busy with work or a parent's death or various life issues that you have to deal with, when you just would rather have a friend there to support you, more than anything else. Other times you may want to make love as much as possible.

So pianosinger, with that said, I'm not sure if it's a static question, which intertype relationships tend to favor love versus friendship, but rather a dynamic one, bieng aware of how the balance towards one or the other changes through a lifetime as well. I'm curious to know too how that changes per intertype relationship and individuals throughout life. Maybe best not to worry about understanding the dynamic so much, but just live your life and be comfortable in whatever stage you're in.